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Finding the Fourth Proportional to 13,577.92, 20,349.87 and 7,337.68

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Solution

The fourth proportional to 13,577.92, 20,349.87 and 7,337.68 is: 10,997.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,577.92 : 20,349.87 = 7,337.68 : x
  2. Step 2: Convert to fraction form
    13,577.92/20,349.87 = 7,337.68/x
  3. Step 3: Cross multiply
    13,577.92x = 20,349.87 × 7,337.68
  4. Step 4: Simplify right side
    13,577.92x = 149,320,834.10
  5. Step 5: Solve for x
    x = 149,320,834.10/13,577.92
  6. Step 6: Final answer
    x = 10,997.33

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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.