Home / 10,081.11-15,121.61-3,839.65

Finding the Fourth Proportional to 10,081.11, 15,121.61 and 3,839.65

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Solution

The fourth proportional to 10,081.11, 15,121.61 and 3,839.65 is: 5,759.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,081.11 : 15,121.61 = 3,839.65 : x
  2. Step 2: Convert to fraction form
    10,081.11/15,121.61 = 3,839.65/x
  3. Step 3: Cross multiply
    10,081.11x = 15,121.61 × 3,839.65
  4. Step 4: Simplify right side
    10,081.11x = 58,061,689.84
  5. Step 5: Solve for x
    x = 58,061,689.84/10,081.11
  6. Step 6: Final answer
    x = 5,759.46

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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.