Home / 8,781.20-12,116.73-4,952.68

Finding the Fourth Proportional to 8,781.20, 12,116.73 and 4,952.68

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Solution

The fourth proportional to 8,781.20, 12,116.73 and 4,952.68 is: 6,833.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,781.20 : 12,116.73 = 4,952.68 : x
  2. Step 2: Convert to fraction form
    8,781.20/12,116.73 = 4,952.68/x
  3. Step 3: Cross multiply
    8,781.20x = 12,116.73 × 4,952.68
  4. Step 4: Simplify right side
    8,781.20x = 60,010,286.34
  5. Step 5: Solve for x
    x = 60,010,286.34/8,781.20
  6. Step 6: Final answer
    x = 6,833.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.