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Finding the Fourth Proportional to 8,614.59, 12,887.87 and 6,155.43

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Solution

The fourth proportional to 8,614.59, 12,887.87 and 6,155.43 is: 9,208.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,614.59 : 12,887.87 = 6,155.43 : x
  2. Step 2: Convert to fraction form
    8,614.59/12,887.87 = 6,155.43/x
  3. Step 3: Cross multiply
    8,614.59x = 12,887.87 × 6,155.43
  4. Step 4: Simplify right side
    8,614.59x = 79,330,350.86
  5. Step 5: Solve for x
    x = 79,330,350.86/8,614.59
  6. Step 6: Final answer
    x = 9,208.84

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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.