Home / 7,086.73-9,781.56-4,847.80

Finding the Fourth Proportional to 7,086.73, 9,781.56 and 4,847.80

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Solution

The fourth proportional to 7,086.73, 9,781.56 and 4,847.80 is: 6,691.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,086.73 : 9,781.56 = 4,847.80 : x
  2. Step 2: Convert to fraction form
    7,086.73/9,781.56 = 4,847.80/x
  3. Step 3: Cross multiply
    7,086.73x = 9,781.56 × 4,847.80
  4. Step 4: Simplify right side
    7,086.73x = 47,419,046.57
  5. Step 5: Solve for x
    x = 47,419,046.57/7,086.73
  6. Step 6: Final answer
    x = 6,691.24

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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.