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Finding the Fourth Proportional to 8,666.85, 13,001.09 and 2,426.86

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Solution

The fourth proportional to 8,666.85, 13,001.09 and 2,426.86 is: 3,640.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,666.85 : 13,001.09 = 2,426.86 : x
  2. Step 2: Convert to fraction form
    8,666.85/13,001.09 = 2,426.86/x
  3. Step 3: Cross multiply
    8,666.85x = 13,001.09 × 2,426.86
  4. Step 4: Simplify right side
    8,666.85x = 31,551,825.28
  5. Step 5: Solve for x
    x = 31,551,825.28/8,666.85
  6. Step 6: Final answer
    x = 3,640.52

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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.