Home / 26,279.64-39,419.87-8,749.49

Finding the Fourth Proportional to 26,279.64, 39,419.87 and 8,749.49

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Solution

The fourth proportional to 26,279.64, 39,419.87 and 8,749.49 is: 13,124.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,279.64 : 39,419.87 = 8,749.49 : x
  2. Step 2: Convert to fraction form
    26,279.64/39,419.87 = 8,749.49/x
  3. Step 3: Cross multiply
    26,279.64x = 39,419.87 × 8,749.49
  4. Step 4: Simplify right side
    26,279.64x = 344,903,517.52
  5. Step 5: Solve for x
    x = 344,903,517.52/26,279.64
  6. Step 6: Final answer
    x = 13,124.36

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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.