Home / 8,913.38-13,370.78-2,757.38

Finding the Fourth Proportional to 8,913.38, 13,370.78 and 2,757.38

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Solution

The fourth proportional to 8,913.38, 13,370.78 and 2,757.38 is: 4,136.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,913.38 : 13,370.78 = 2,757.38 : x
  2. Step 2: Convert to fraction form
    8,913.38/13,370.78 = 2,757.38/x
  3. Step 3: Cross multiply
    8,913.38x = 13,370.78 × 2,757.38
  4. Step 4: Simplify right side
    8,913.38x = 36,868,261.40
  5. Step 5: Solve for x
    x = 36,868,261.40/8,913.38
  6. Step 6: Final answer
    x = 4,136.29

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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.