Home / 12,278.27-18,414.88-3,511.24

Finding the Fourth Proportional to 12,278.27, 18,414.88 and 3,511.24

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Solution

The fourth proportional to 12,278.27, 18,414.88 and 3,511.24 is: 5,266.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,278.27 : 18,414.88 = 3,511.24 : x
  2. Step 2: Convert to fraction form
    12,278.27/18,414.88 = 3,511.24/x
  3. Step 3: Cross multiply
    12,278.27x = 18,414.88 × 3,511.24
  4. Step 4: Simplify right side
    12,278.27x = 64,659,008.44
  5. Step 5: Solve for x
    x = 64,659,008.44/12,278.27
  6. Step 6: Final answer
    x = 5,266.13

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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.