Home / 17,691.06-26,540.91-7,305.78

Finding the Fourth Proportional to 17,691.06, 26,540.91 and 7,305.78

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Solution

The fourth proportional to 17,691.06, 26,540.91 and 7,305.78 is: 10,960.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,691.06 : 26,540.91 = 7,305.78 : x
  2. Step 2: Convert to fraction form
    17,691.06/26,540.91 = 7,305.78/x
  3. Step 3: Cross multiply
    17,691.06x = 26,540.91 × 7,305.78
  4. Step 4: Simplify right side
    17,691.06x = 193,902,049.46
  5. Step 5: Solve for x
    x = 193,902,049.46/17,691.06
  6. Step 6: Final answer
    x = 10,960.45

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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.