Home / 8,255.78-11,387.14-4,895.90

Finding the Fourth Proportional to 8,255.78, 11,387.14 and 4,895.90

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Solution

The fourth proportional to 8,255.78, 11,387.14 and 4,895.90 is: 6,752.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,255.78 : 11,387.14 = 4,895.90 : x
  2. Step 2: Convert to fraction form
    8,255.78/11,387.14 = 4,895.90/x
  3. Step 3: Cross multiply
    8,255.78x = 11,387.14 × 4,895.90
  4. Step 4: Simplify right side
    8,255.78x = 55,750,229.55
  5. Step 5: Solve for x
    x = 55,750,229.55/8,255.78
  6. Step 6: Final answer
    x = 6,752.88

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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.