Home / 10,251.02-15,388.68-8,627.78

Finding the Fourth Proportional to 10,251.02, 15,388.68 and 8,627.78

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Solution

The fourth proportional to 10,251.02, 15,388.68 and 8,627.78 is: 12,951.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,251.02 : 15,388.68 = 8,627.78 : x
  2. Step 2: Convert to fraction form
    10,251.02/15,388.68 = 8,627.78/x
  3. Step 3: Cross multiply
    10,251.02x = 15,388.68 × 8,627.78
  4. Step 4: Simplify right side
    10,251.02x = 132,770,145.53
  5. Step 5: Solve for x
    x = 132,770,145.53/10,251.02
  6. Step 6: Final answer
    x = 12,951.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.