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Finding the Fourth Proportional to 10,001.70, 14,966.10 and 9,126.90

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Solution

The fourth proportional to 10,001.70, 14,966.10 and 9,126.90 is: 13,657.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,001.70 : 14,966.10 = 9,126.90 : x
  2. Step 2: Convert to fraction form
    10,001.70/14,966.10 = 9,126.90/x
  3. Step 3: Cross multiply
    10,001.70x = 14,966.10 × 9,126.90
  4. Step 4: Simplify right side
    10,001.70x = 136,594,098.09
  5. Step 5: Solve for x
    x = 136,594,098.09/10,001.70
  6. Step 6: Final answer
    x = 13,657.09

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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.