Home / 8,761.01-13,143.56-2,520.86

Finding the Fourth Proportional to 8,761.01, 13,143.56 and 2,520.86

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Solution

The fourth proportional to 8,761.01, 13,143.56 and 2,520.86 is: 3,781.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,761.01 : 13,143.56 = 2,520.86 : x
  2. Step 2: Convert to fraction form
    8,761.01/13,143.56 = 2,520.86/x
  3. Step 3: Cross multiply
    8,761.01x = 13,143.56 × 2,520.86
  4. Step 4: Simplify right side
    8,761.01x = 33,132,996.34
  5. Step 5: Solve for x
    x = 33,132,996.34/8,761.01
  6. Step 6: Final answer
    x = 3,781.87

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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.