Home / 12,291.82-18,387.10-11,244.18

Finding the Fourth Proportional to 12,291.82, 18,387.10 and 11,244.18

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Solution

The fourth proportional to 12,291.82, 18,387.10 and 11,244.18 is: 16,819.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,291.82 : 18,387.10 = 11,244.18 : x
  2. Step 2: Convert to fraction form
    12,291.82/18,387.10 = 11,244.18/x
  3. Step 3: Cross multiply
    12,291.82x = 18,387.10 × 11,244.18
  4. Step 4: Simplify right side
    12,291.82x = 206,747,945.08
  5. Step 5: Solve for x
    x = 206,747,945.08/12,291.82
  6. Step 6: Final answer
    x = 16,819.97

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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.