The answer is x = 27.Step-by-step explanation:First, we need to use cross multiplication, so it becomes 6 × 18 = 4x.Next, we need to solve 6 × 18, which is 108, so it becomes 108 = 4x.After that, we need to divide it both sides by 4, so x = 108 ÷ 4.Finally, the answer is x is equal to 27.