Home / 8,218.20-12,327.30-3,836.10

Finding the Fourth Proportional to 8,218.20, 12,327.30 and 3,836.10

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Solution

The fourth proportional to 8,218.20, 12,327.30 and 3,836.10 is: 5,754.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,218.20 : 12,327.30 = 3,836.10 : x
  2. Step 2: Convert to fraction form
    8,218.20/12,327.30 = 3,836.10/x
  3. Step 3: Cross multiply
    8,218.20x = 12,327.30 × 3,836.10
  4. Step 4: Simplify right side
    8,218.20x = 47,288,755.53
  5. Step 5: Solve for x
    x = 47,288,755.53/8,218.20
  6. Step 6: Final answer
    x = 5,754.15

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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.