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Finding the Fourth Proportional to 10,000.60, 14,972.10 and 8,963.80

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Solution

The fourth proportional to 10,000.60, 14,972.10 and 8,963.80 is: 13,419.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,000.60 : 14,972.10 = 8,963.80 : x
  2. Step 2: Convert to fraction form
    10,000.60/14,972.10 = 8,963.80/x
  3. Step 3: Cross multiply
    10,000.60x = 14,972.10 × 8,963.80
  4. Step 4: Simplify right side
    10,000.60x = 134,206,909.98
  5. Step 5: Solve for x
    x = 134,206,909.98/10,000.60
  6. Step 6: Final answer
    x = 13,419.89

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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.