Home / 18,112.32-27,167.85-12,227.88

Finding the Fourth Proportional to 18,112.32, 27,167.85 and 12,227.88

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Solution

The fourth proportional to 18,112.32, 27,167.85 and 12,227.88 is: 18,341.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,112.32 : 27,167.85 = 12,227.88 : x
  2. Step 2: Convert to fraction form
    18,112.32/27,167.85 = 12,227.88/x
  3. Step 3: Cross multiply
    18,112.32x = 27,167.85 × 12,227.88
  4. Step 4: Simplify right side
    18,112.32x = 332,205,209.66
  5. Step 5: Solve for x
    x = 332,205,209.66/18,112.32
  6. Step 6: Final answer
    x = 18,341.39

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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.