Home / 12,549.82-18,821.07-3,782.38

Finding the Fourth Proportional to 12,549.82, 18,821.07 and 3,782.38

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Solution

The fourth proportional to 12,549.82, 18,821.07 and 3,782.38 is: 5,672.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,549.82 : 18,821.07 = 3,782.38 : x
  2. Step 2: Convert to fraction form
    12,549.82/18,821.07 = 3,782.38/x
  3. Step 3: Cross multiply
    12,549.82x = 18,821.07 × 3,782.38
  4. Step 4: Simplify right side
    12,549.82x = 71,188,438.75
  5. Step 5: Solve for x
    x = 71,188,438.75/12,549.82
  6. Step 6: Final answer
    x = 5,672.47

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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.