Home / 14,778.28-20,388.36-9,472.24

Finding the Fourth Proportional to 14,778.28, 20,388.36 and 9,472.24

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Solution

The fourth proportional to 14,778.28, 20,388.36 and 9,472.24 is: 13,068.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,778.28 : 20,388.36 = 9,472.24 : x
  2. Step 2: Convert to fraction form
    14,778.28/20,388.36 = 9,472.24/x
  3. Step 3: Cross multiply
    14,778.28x = 20,388.36 × 9,472.24
  4. Step 4: Simplify right side
    14,778.28x = 193,123,439.13
  5. Step 5: Solve for x
    x = 193,123,439.13/14,778.28
  6. Step 6: Final answer
    x = 13,068.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.