Home / 12,076.43-18,115.85-4,177.91

Finding the Fourth Proportional to 12,076.43, 18,115.85 and 4,177.91

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Solution

The fourth proportional to 12,076.43, 18,115.85 and 4,177.91 is: 6,267.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,076.43 : 18,115.85 = 4,177.91 : x
  2. Step 2: Convert to fraction form
    12,076.43/18,115.85 = 4,177.91/x
  3. Step 3: Cross multiply
    12,076.43x = 18,115.85 × 4,177.91
  4. Step 4: Simplify right side
    12,076.43x = 75,686,446.61
  5. Step 5: Solve for x
    x = 75,686,446.61/12,076.43
  6. Step 6: Final answer
    x = 6,267.29

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1.5x scale

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.