Home / 12,229.65-18,344.16-3,910.14

Finding the Fourth Proportional to 12,229.65, 18,344.16 and 3,910.14

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Solution

The fourth proportional to 12,229.65, 18,344.16 and 3,910.14 is: 5,865.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,229.65 : 18,344.16 = 3,910.14 : x
  2. Step 2: Convert to fraction form
    12,229.65/18,344.16 = 3,910.14/x
  3. Step 3: Cross multiply
    12,229.65x = 18,344.16 × 3,910.14
  4. Step 4: Simplify right side
    12,229.65x = 71,728,233.78
  5. Step 5: Solve for x
    x = 71,728,233.78/12,229.65
  6. Step 6: Final answer
    x = 5,865.11

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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.