Home / 8,126.38-12,182.30-3,199.42

Finding the Fourth Proportional to 8,126.38, 12,182.30 and 3,199.42

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Solution

The fourth proportional to 8,126.38, 12,182.30 and 3,199.42 is: 4,796.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,126.38 : 12,182.30 = 3,199.42 : x
  2. Step 2: Convert to fraction form
    8,126.38/12,182.30 = 3,199.42/x
  3. Step 3: Cross multiply
    8,126.38x = 12,182.30 × 3,199.42
  4. Step 4: Simplify right side
    8,126.38x = 38,976,294.27
  5. Step 5: Solve for x
    x = 38,976,294.27/8,126.38
  6. Step 6: Final answer
    x = 4,796.27

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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.