Home / 8,557.28-11,781.60-7,452.80

Finding the Fourth Proportional to 8,557.28, 11,781.60 and 7,452.80

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Solution

The fourth proportional to 8,557.28, 11,781.60 and 7,452.80 is: 10,260.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,557.28 : 11,781.60 = 7,452.80 : x
  2. Step 2: Convert to fraction form
    8,557.28/11,781.60 = 7,452.80/x
  3. Step 3: Cross multiply
    8,557.28x = 11,781.60 × 7,452.80
  4. Step 4: Simplify right side
    8,557.28x = 87,805,908.48
  5. Step 5: Solve for x
    x = 87,805,908.48/8,557.28
  6. Step 6: Final answer
    x = 10,260.96

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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.