Related do Ketuwot 13:14

A man who dies and leaves sons and daughters, when the property is large, the sons inherit and the daughters are fed and supported. How do the sons inherit? They [the court] don't say: "If their father were still alive, he would have given them X"—rather, they see each one as if he were their still living father [at the same social status], and pay them. How are the daughters fed and supported? They don't say: "If their father were still alive, he would have given them X"—rather, they see them as they are [now in social status] and so how much they need support, and pay them. Rabbi says: Each of [the daughters] takes a tenth of the property. Rabbi Yehudah says: If he married off his first daughter [with a certain dowry], he has to give to the second like what he gave to the first. They said to him: There are those who marry off their daughter and receive money, and those who marry off their daughter and pay after her money. And so Rabbi Yehudah used to say: One who marries off his daughter without explicit [stipulation of a dowry], he should not give her less than 5 selaim, for in the old days that was enough to buy for her everything she needs.

Said Rabbi Yose son of Rabbi Yehudah: Admon and Hakhamim did not disagree (in Mishnah Ketubot about one whose father agreed [to add money in the dowry] for her that she is able to say: "My father agreed [this money] for me. What am I able to do? Either marry me or divorce me!" Regarding what [case] did they disagree? When she agreed to pay it herself. Admon says: She is able to say: "I thought my father would pay me, but now that my father is not paying me, what am I able to do? Either marry me or divorce me!" Said Rabban Gamliel: I agree with the words of Admon. One who agreed money for his minor daughter [in her dowry] and then tried to weasel out of it, they force him to pay, for one can act [in a minor's] favour but not to their detriment.