Home / 18,242.91-25,158.42-11,516.85

Finding the Fourth Proportional to 18,242.91, 25,158.42 and 11,516.85

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Solution

The fourth proportional to 18,242.91, 25,158.42 and 11,516.85 is: 15,882.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,242.91 : 25,158.42 = 11,516.85 : x
  2. Step 2: Convert to fraction form
    18,242.91/25,158.42 = 11,516.85/x
  3. Step 3: Cross multiply
    18,242.91x = 25,158.42 × 11,516.85
  4. Step 4: Simplify right side
    18,242.91x = 289,745,749.38
  5. Step 5: Solve for x
    x = 289,745,749.38/18,242.91
  6. Step 6: Final answer
    x = 15,882.65

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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.