'Fourth' in the Bible

Now there was a great famine in Samaria; and they besieged it until a donkey’s head was sold for eighty shekels of silver, and a fourth of a kab of dove’s dung for five shekels of silver.

The Lord said to Jehu, “Because you have done well in executing what is right in My eyes, and have done to the house of Ahab in accordance with everything that was in My heart, your sons (descendants) shall sit on Israel’s throne to the fourth generation.”

This is [the fulfillment of] the word of the Lord which He spoke to Jehu, saying, “Your sons (descendants) shall sit on the throne of Israel to the fourth generation.” And so it came to pass.

Now in the fourth year of King Hezekiah, which was the seventh of Hoshea the son of Elah king of Israel, Shalmaneser the king of Assyria went up against Samaria and besieged it.

On the ninth day of the fourth month the famine [caused by the siege] was severe in the city; there was no food for the people of the land.