Home / 12,486.88-18,716.19-5,082.04

Finding the Fourth Proportional to 12,486.88, 18,716.19 and 5,082.04

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Solution

The fourth proportional to 12,486.88, 18,716.19 and 5,082.04 is: 7,617.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,486.88 : 18,716.19 = 5,082.04 : x
  2. Step 2: Convert to fraction form
    12,486.88/18,716.19 = 5,082.04/x
  3. Step 3: Cross multiply
    12,486.88x = 18,716.19 × 5,082.04
  4. Step 4: Simplify right side
    12,486.88x = 95,116,426.23
  5. Step 5: Solve for x
    x = 95,116,426.23/12,486.88
  6. Step 6: Final answer
    x = 7,617.31

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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.