Home / 8,939.57-13,414.75-3,100.28

Finding the Fourth Proportional to 8,939.57, 13,414.75 and 3,100.28

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Solution

The fourth proportional to 8,939.57, 13,414.75 and 3,100.28 is: 4,652.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,939.57 : 13,414.75 = 3,100.28 : x
  2. Step 2: Convert to fraction form
    8,939.57/13,414.75 = 3,100.28/x
  3. Step 3: Cross multiply
    8,939.57x = 13,414.75 × 3,100.28
  4. Step 4: Simplify right side
    8,939.57x = 41,589,406.31
  5. Step 5: Solve for x
    x = 41,589,406.31/8,939.57
  6. Step 6: Final answer
    x = 4,652.29

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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.