Answer:
7/12 cups water
Explanation:
you can set up a proportion of cups flour to cups water as follows:
=

'w' stands for the amount of water we'll need when using 7 cups of flour
Proportions can be solved by cross-multiplying, so we have:
4w =

We can eliminate the denominator by multiplying each side by 3 to get:
12w = 7
w = 7/12