Home / 14,549.38-20,077.17-8,580.78

Finding the Fourth Proportional to 14,549.38, 20,077.17 and 8,580.78

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Solution

The fourth proportional to 14,549.38, 20,077.17 and 8,580.78 is: 11,840.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,549.38 : 20,077.17 = 8,580.78 : x
  2. Step 2: Convert to fraction form
    14,549.38/20,077.17 = 8,580.78/x
  3. Step 3: Cross multiply
    14,549.38x = 20,077.17 × 8,580.78
  4. Step 4: Simplify right side
    14,549.38x = 172,277,778.79
  5. Step 5: Solve for x
    x = 172,277,778.79/14,549.38
  6. Step 6: Final answer
    x = 11,840.90

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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.