Pooja writes the ratio x3=y4 to help her increase the size of a two-dimensional shape. If the new value of x is 15 units, what will be the value of y ?(

To find the value of y when x is 15 units, we can set up a proportion using the given ratio:

x^3 = y^4

(15)^3 = y^4
3375 = y^4

Now, we can find the fourth root of 3375 to find the value of y:

y = ∛3375
y = 15

Therefore, when the new value of x is 15 units, the value of y will also be 15 units.