Home / 12,723.38-19,085.61-3,489.38

Finding the Fourth Proportional to 12,723.38, 19,085.61 and 3,489.38

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Solution

The fourth proportional to 12,723.38, 19,085.61 and 3,489.38 is: 5,234.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,723.38 : 19,085.61 = 3,489.38 : x
  2. Step 2: Convert to fraction form
    12,723.38/19,085.61 = 3,489.38/x
  3. Step 3: Cross multiply
    12,723.38x = 19,085.61 × 3,489.38
  4. Step 4: Simplify right side
    12,723.38x = 66,596,850.39
  5. Step 5: Solve for x
    x = 66,596,850.39/12,723.38
  6. Step 6: Final answer
    x = 5,234.21

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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.