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Finding the Fourth Proportional to 8,218.29, 12,327.15 and 2,375.49

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Solution

The fourth proportional to 8,218.29, 12,327.15 and 2,375.49 is: 3,563.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,218.29 : 12,327.15 = 2,375.49 : x
  2. Step 2: Convert to fraction form
    8,218.29/12,327.15 = 2,375.49/x
  3. Step 3: Cross multiply
    8,218.29x = 12,327.15 × 2,375.49
  4. Step 4: Simplify right side
    8,218.29x = 29,283,021.55
  5. Step 5: Solve for x
    x = 29,283,021.55/8,218.29
  6. Step 6: Final answer
    x = 3,563.15

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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.