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Finding the Fourth Proportional to 9,337.20, 14,005.80 and 8,761.20

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Solution

The fourth proportional to 9,337.20, 14,005.80 and 8,761.20 is: 13,141.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,337.20 : 14,005.80 = 8,761.20 : x
  2. Step 2: Convert to fraction form
    9,337.20/14,005.80 = 8,761.20/x
  3. Step 3: Cross multiply
    9,337.20x = 14,005.80 × 8,761.20
  4. Step 4: Simplify right side
    9,337.20x = 122,707,614.96
  5. Step 5: Solve for x
    x = 122,707,614.96/9,337.20
  6. Step 6: Final answer
    x = 13,141.80

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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.