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Finding the Fourth Proportional to 8,606.04, 12,909.90 and 2,761.26

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Solution

The fourth proportional to 8,606.04, 12,909.90 and 2,761.26 is: 4,142.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,606.04 : 12,909.90 = 2,761.26 : x
  2. Step 2: Convert to fraction form
    8,606.04/12,909.90 = 2,761.26/x
  3. Step 3: Cross multiply
    8,606.04x = 12,909.90 × 2,761.26
  4. Step 4: Simplify right side
    8,606.04x = 35,647,590.47
  5. Step 5: Solve for x
    x = 35,647,590.47/8,606.04
  6. Step 6: Final answer
    x = 4,142.16

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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.