Home / 10,469.29-15,705.86-3,449.70

Finding the Fourth Proportional to 10,469.29, 15,705.86 and 3,449.70

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Solution

The fourth proportional to 10,469.29, 15,705.86 and 3,449.70 is: 5,175.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,469.29 : 15,705.86 = 3,449.70 : x
  2. Step 2: Convert to fraction form
    10,469.29/15,705.86 = 3,449.70/x
  3. Step 3: Cross multiply
    10,469.29x = 15,705.86 × 3,449.70
  4. Step 4: Simplify right side
    10,469.29x = 54,180,505.24
  5. Step 5: Solve for x
    x = 54,180,505.24/10,469.29
  6. Step 6: Final answer
    x = 5,175.18

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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.