Home / 21,197.38-29,249.85-11,764.66

Finding the Fourth Proportional to 21,197.38, 29,249.85 and 11,764.66

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Solution

The fourth proportional to 21,197.38, 29,249.85 and 11,764.66 is: 16,233.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,197.38 : 29,249.85 = 11,764.66 : x
  2. Step 2: Convert to fraction form
    21,197.38/29,249.85 = 11,764.66/x
  3. Step 3: Cross multiply
    21,197.38x = 29,249.85 × 11,764.66
  4. Step 4: Simplify right side
    21,197.38x = 344,114,540.30
  5. Step 5: Solve for x
    x = 344,114,540.30/21,197.38
  6. Step 6: Final answer
    x = 16,233.82

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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.