Home / 8,781.18-13,158.30-5,966.43

Finding the Fourth Proportional to 8,781.18, 13,158.30 and 5,966.43

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Solution

The fourth proportional to 8,781.18, 13,158.30 and 5,966.43 is: 8,940.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,781.18 : 13,158.30 = 5,966.43 : x
  2. Step 2: Convert to fraction form
    8,781.18/13,158.30 = 5,966.43/x
  3. Step 3: Cross multiply
    8,781.18x = 13,158.30 × 5,966.43
  4. Step 4: Simplify right side
    8,781.18x = 78,508,098.24
  5. Step 5: Solve for x
    x = 78,508,098.24/8,781.18
  6. Step 6: Final answer
    x = 8,940.50

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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.