Home / 10.91-16.38-9.59

Finding the Fourth Proportional to 10.91, 16.38 and 9.59

Calculator

Solution

The fourth proportional to 10.91, 16.38 and 9.59 is: 14.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10.91 : 16.38 = 9.59 : x
  2. Step 2: Convert to fraction form
    10.91/16.38 = 9.59/x
  3. Step 3: Cross multiply
    10.91x = 16.38 × 9.59
  4. Step 4: Simplify right side
    10.91x = 157.08
  5. Step 5: Solve for x
    x = 157.08/10.91
  6. Step 6: Final answer
    x = 14.40

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.