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Finding the Fourth Proportional to 17,882.56, 26,837.41 and 12,246.78

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Solution

The fourth proportional to 17,882.56, 26,837.41 and 12,246.78 is: 18,379.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,882.56 : 26,837.41 = 12,246.78 : x
  2. Step 2: Convert to fraction form
    17,882.56/26,837.41 = 12,246.78/x
  3. Step 3: Cross multiply
    17,882.56x = 26,837.41 × 12,246.78
  4. Step 4: Simplify right side
    17,882.56x = 328,671,856.04
  5. Step 5: Solve for x
    x = 328,671,856.04/17,882.56
  6. Step 6: Final answer
    x = 18,379.46

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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.