Home / 17,679.38-26,517.66-10,279.12

Finding the Fourth Proportional to 17,679.38, 26,517.66 and 10,279.12

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Solution

The fourth proportional to 17,679.38, 26,517.66 and 10,279.12 is: 15,417.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,679.38 : 26,517.66 = 10,279.12 : x
  2. Step 2: Convert to fraction form
    17,679.38/26,517.66 = 10,279.12/x
  3. Step 3: Cross multiply
    17,679.38x = 26,517.66 × 10,279.12
  4. Step 4: Simplify right side
    17,679.38x = 272,578,209.26
  5. Step 5: Solve for x
    x = 272,578,209.26/17,679.38
  6. Step 6: Final answer
    x = 15,417.86

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1.5x scale

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.