Home / 11,031.28-16,545.18-9,169.12

Finding the Fourth Proportional to 11,031.28, 16,545.18 and 9,169.12

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Solution

The fourth proportional to 11,031.28, 16,545.18 and 9,169.12 is: 13,752.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,031.28 : 16,545.18 = 9,169.12 : x
  2. Step 2: Convert to fraction form
    11,031.28/16,545.18 = 9,169.12/x
  3. Step 3: Cross multiply
    11,031.28x = 16,545.18 × 9,169.12
  4. Step 4: Simplify right side
    11,031.28x = 151,704,695.00
  5. Step 5: Solve for x
    x = 151,704,695.00/11,031.28
  6. Step 6: Final answer
    x = 13,752.23

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1.5x scale

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.