Home / 8,717.97-13,082.51-3,170.78

Finding the Fourth Proportional to 8,717.97, 13,082.51 and 3,170.78

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Solution

The fourth proportional to 8,717.97, 13,082.51 and 3,170.78 is: 4,758.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,717.97 : 13,082.51 = 3,170.78 : x
  2. Step 2: Convert to fraction form
    8,717.97/13,082.51 = 3,170.78/x
  3. Step 3: Cross multiply
    8,717.97x = 13,082.51 × 3,170.78
  4. Step 4: Simplify right side
    8,717.97x = 41,481,679.79
  5. Step 5: Solve for x
    x = 41,481,679.79/8,717.97
  6. Step 6: Final answer
    x = 4,758.18

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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.