Home / 12,082.14-18,128.61-4,687.18

Finding the Fourth Proportional to 12,082.14, 18,128.61 and 4,687.18

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Solution

The fourth proportional to 12,082.14, 18,128.61 and 4,687.18 is: 7,032.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,082.14 : 18,128.61 = 4,687.18 : x
  2. Step 2: Convert to fraction form
    12,082.14/18,128.61 = 4,687.18/x
  3. Step 3: Cross multiply
    12,082.14x = 18,128.61 × 4,687.18
  4. Step 4: Simplify right side
    12,082.14x = 84,972,058.22
  5. Step 5: Solve for x
    x = 84,972,058.22/12,082.14
  6. Step 6: Final answer
    x = 7,032.86

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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.