Home / 17,389.86-26,062.91-12,469.11

Finding the Fourth Proportional to 17,389.86, 26,062.91 and 12,469.11

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Solution

The fourth proportional to 17,389.86, 26,062.91 and 12,469.11 is: 18,687.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,389.86 : 26,062.91 = 12,469.11 : x
  2. Step 2: Convert to fraction form
    17,389.86/26,062.91 = 12,469.11/x
  3. Step 3: Cross multiply
    17,389.86x = 26,062.91 × 12,469.11
  4. Step 4: Simplify right side
    17,389.86x = 324,981,229.36
  5. Step 5: Solve for x
    x = 324,981,229.36/17,389.86
  6. Step 6: Final answer
    x = 18,687.97

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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.