Home / 18,517.17-25,546.55-12,849.08

Finding the Fourth Proportional to 18,517.17, 25,546.55 and 12,849.08

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Solution

The fourth proportional to 18,517.17, 25,546.55 and 12,849.08 is: 17,726.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,517.17 : 25,546.55 = 12,849.08 : x
  2. Step 2: Convert to fraction form
    18,517.17/25,546.55 = 12,849.08/x
  3. Step 3: Cross multiply
    18,517.17x = 25,546.55 × 12,849.08
  4. Step 4: Simplify right side
    18,517.17x = 328,249,472.70
  5. Step 5: Solve for x
    x = 328,249,472.70/18,517.17
  6. Step 6: Final answer
    x = 17,726.76

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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.