Home / 9,418.38-12,997.11-5,169.44

Finding the Fourth Proportional to 9,418.38, 12,997.11 and 5,169.44

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Solution

The fourth proportional to 9,418.38, 12,997.11 and 5,169.44 is: 7,133.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,418.38 : 12,997.11 = 5,169.44 : x
  2. Step 2: Convert to fraction form
    9,418.38/12,997.11 = 5,169.44/x
  3. Step 3: Cross multiply
    9,418.38x = 12,997.11 × 5,169.44
  4. Step 4: Simplify right side
    9,418.38x = 67,187,715.33
  5. Step 5: Solve for x
    x = 67,187,715.33/9,418.38
  6. Step 6: Final answer
    x = 7,133.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.