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Finding the Fourth Proportional to 9,404.70, 14,107.05 and 8,691.90

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Solution

The fourth proportional to 9,404.70, 14,107.05 and 8,691.90 is: 13,037.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,404.70 : 14,107.05 = 8,691.90 : x
  2. Step 2: Convert to fraction form
    9,404.70/14,107.05 = 8,691.90/x
  3. Step 3: Cross multiply
    9,404.70x = 14,107.05 × 8,691.90
  4. Step 4: Simplify right side
    9,404.70x = 122,617,067.90
  5. Step 5: Solve for x
    x = 122,617,067.90/9,404.70
  6. Step 6: Final answer
    x = 13,037.85

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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.