Home / 18,616.71-25,691.23-10,118.85

Finding the Fourth Proportional to 18,616.71, 25,691.23 and 10,118.85

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Solution

The fourth proportional to 18,616.71, 25,691.23 and 10,118.85 is: 13,964.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,616.71 : 25,691.23 = 10,118.85 : x
  2. Step 2: Convert to fraction form
    18,616.71/25,691.23 = 10,118.85/x
  3. Step 3: Cross multiply
    18,616.71x = 25,691.23 × 10,118.85
  4. Step 4: Simplify right side
    18,616.71x = 259,965,727.38
  5. Step 5: Solve for x
    x = 259,965,727.38/18,616.71
  6. Step 6: Final answer
    x = 13,964.11

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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.