Home / 8,718.97-13,084.01-3,171.78

Finding the Fourth Proportional to 8,718.97, 13,084.01 and 3,171.78

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Solution

The fourth proportional to 8,718.97, 13,084.01 and 3,171.78 is: 4,759.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.97 : 13,084.01 = 3,171.78 : x
  2. Step 2: Convert to fraction form
    8,718.97/13,084.01 = 3,171.78/x
  3. Step 3: Cross multiply
    8,718.97x = 13,084.01 × 3,171.78
  4. Step 4: Simplify right side
    8,718.97x = 41,499,601.24
  5. Step 5: Solve for x
    x = 41,499,601.24/8,718.97
  6. Step 6: Final answer
    x = 4,759.69

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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.