Home / 12,082.58-18,121.78-3,197.96

Finding the Fourth Proportional to 12,082.58, 18,121.78 and 3,197.96

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Solution

The fourth proportional to 12,082.58, 18,121.78 and 3,197.96 is: 4,796.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,082.58 : 18,121.78 = 3,197.96 : x
  2. Step 2: Convert to fraction form
    12,082.58/18,121.78 = 3,197.96/x
  3. Step 3: Cross multiply
    12,082.58x = 18,121.78 × 3,197.96
  4. Step 4: Simplify right side
    12,082.58x = 57,952,792.86
  5. Step 5: Solve for x
    x = 57,952,792.86/12,082.58
  6. Step 6: Final answer
    x = 4,796.39

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.