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Finding the Fourth Proportional to 8,609.86, 12,910.39 and 3,062.38

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Solution

The fourth proportional to 8,609.86, 12,910.39 and 3,062.38 is: 4,592.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,609.86 : 12,910.39 = 3,062.38 : x
  2. Step 2: Convert to fraction form
    8,609.86/12,910.39 = 3,062.38/x
  3. Step 3: Cross multiply
    8,609.86x = 12,910.39 × 3,062.38
  4. Step 4: Simplify right side
    8,609.86x = 39,536,520.13
  5. Step 5: Solve for x
    x = 39,536,520.13/8,609.86
  6. Step 6: Final answer
    x = 4,592.00

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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.