if x is related to y and x = 12 & y = 4. what is y if x = 18?

none

Using the information that x = 12 when y = 4, we can find the value of k, because y = k/x

becomes 4 = k/12.

Solving this for k,

we get k = 3

When x = 18

y = k/x becomes

y = 3/ 18

This simplifies to y = 6