4/7=7/x solve the proportion

To solve the proportion 4/7 = 7/x, you can cross-multiply and solve for x.

Cross multiply:
4 * x = 7 * 7

Multiply:
4x = 49

Now, divide both sides by 4:
x = 49/4

Therefore, the solution is x = 49/4 or x = 12.25.