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Finding the Fourth Proportional to 12,627.20, 18,892.20 and 8,253.20

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Solution

The fourth proportional to 12,627.20, 18,892.20 and 8,253.20 is: 12,348.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,627.20 : 18,892.20 = 8,253.20 : x
  2. Step 2: Convert to fraction form
    12,627.20/18,892.20 = 8,253.20/x
  3. Step 3: Cross multiply
    12,627.20x = 18,892.20 × 8,253.20
  4. Step 4: Simplify right side
    12,627.20x = 155,921,105.04
  5. Step 5: Solve for x
    x = 155,921,105.04/12,627.20
  6. Step 6: Final answer
    x = 12,348.03

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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.