Home / 12,371.88-18,557.82-3,606.60

Finding the Fourth Proportional to 12,371.88, 18,557.82 and 3,606.60

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Solution

The fourth proportional to 12,371.88, 18,557.82 and 3,606.60 is: 5,409.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,371.88 : 18,557.82 = 3,606.60 : x
  2. Step 2: Convert to fraction form
    12,371.88/18,557.82 = 3,606.60/x
  3. Step 3: Cross multiply
    12,371.88x = 18,557.82 × 3,606.60
  4. Step 4: Simplify right side
    12,371.88x = 66,930,633.61
  5. Step 5: Solve for x
    x = 66,930,633.61/12,371.88
  6. Step 6: Final answer
    x = 5,409.90

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Similar ratio
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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.