Home / 8,515.38-12,775.23-2,672.04

Finding the Fourth Proportional to 8,515.38, 12,775.23 and 2,672.04

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Solution

The fourth proportional to 8,515.38, 12,775.23 and 2,672.04 is: 4,008.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,515.38 : 12,775.23 = 2,672.04 : x
  2. Step 2: Convert to fraction form
    8,515.38/12,775.23 = 2,672.04/x
  3. Step 3: Cross multiply
    8,515.38x = 12,775.23 × 2,672.04
  4. Step 4: Simplify right side
    8,515.38x = 34,135,925.57
  5. Step 5: Solve for x
    x = 34,135,925.57/8,515.38
  6. Step 6: Final answer
    x = 4,008.74

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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.