Home / 9,108.80-12,565.92-5,755.84

Finding the Fourth Proportional to 9,108.80, 12,565.92 and 5,755.84

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Solution

The fourth proportional to 9,108.80, 12,565.92 and 5,755.84 is: 7,940.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,108.80 : 12,565.92 = 5,755.84 : x
  2. Step 2: Convert to fraction form
    9,108.80/12,565.92 = 5,755.84/x
  3. Step 3: Cross multiply
    9,108.80x = 12,565.92 × 5,755.84
  4. Step 4: Simplify right side
    9,108.80x = 72,327,424.97
  5. Step 5: Solve for x
    x = 72,327,424.97/9,108.80
  6. Step 6: Final answer
    x = 7,940.39

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Half scale
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Double scale
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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.