Home / 8,578.20-12,868.25-2,733.42

Finding the Fourth Proportional to 8,578.20, 12,868.25 and 2,733.42

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Solution

The fourth proportional to 8,578.20, 12,868.25 and 2,733.42 is: 4,100.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,578.20 : 12,868.25 = 2,733.42 : x
  2. Step 2: Convert to fraction form
    8,578.20/12,868.25 = 2,733.42/x
  3. Step 3: Cross multiply
    8,578.20x = 12,868.25 × 2,733.42
  4. Step 4: Simplify right side
    8,578.20x = 35,174,318.25
  5. Step 5: Solve for x
    x = 35,174,318.25/8,578.20
  6. Step 6: Final answer
    x = 4,100.43

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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.