Home / 26,279.20-39,419.10-8,749

Finding the Fourth Proportional to 26,279.20, 39,419.10 and 8,749

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Solution

The fourth proportional to 26,279.20, 39,419.10 and 8,749 is: 13,123.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,279.20 : 39,419.10 = 8,749 : x
  2. Step 2: Convert to fraction form
    26,279.20/39,419.10 = 8,749/x
  3. Step 3: Cross multiply
    26,279.20x = 39,419.10 × 8,749
  4. Step 4: Simplify right side
    26,279.20x = 344,877,705.90
  5. Step 5: Solve for x
    x = 344,877,705.90/26,279.20
  6. Step 6: Final answer
    x = 13,123.60

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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.