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Finding the Fourth Proportional to 9,956.87, 15,001.78 and 9,008.15

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Solution

The fourth proportional to 9,956.87, 15,001.78 and 9,008.15 is: 13,572.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,956.87 : 15,001.78 = 9,008.15 : x
  2. Step 2: Convert to fraction form
    9,956.87/15,001.78 = 9,008.15/x
  3. Step 3: Cross multiply
    9,956.87x = 15,001.78 × 9,008.15
  4. Step 4: Simplify right side
    9,956.87x = 135,138,220.76
  5. Step 5: Solve for x
    x = 135,138,220.76/9,956.87
  6. Step 6: Final answer
    x = 13,572.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.