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Finding the Fourth Proportional to 8,717.59, 12,061.95 and 7,600.86

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Solution

The fourth proportional to 8,717.59, 12,061.95 and 7,600.86 is: 10,516.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,717.59 : 12,061.95 = 7,600.86 : x
  2. Step 2: Convert to fraction form
    8,717.59/12,061.95 = 7,600.86/x
  3. Step 3: Cross multiply
    8,717.59x = 12,061.95 × 7,600.86
  4. Step 4: Simplify right side
    8,717.59x = 91,681,193.28
  5. Step 5: Solve for x
    x = 91,681,193.28/8,717.59
  6. Step 6: Final answer
    x = 10,516.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.