Home / 8,939.92-13,407.27-3,389.26

Finding the Fourth Proportional to 8,939.92, 13,407.27 and 3,389.26

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Solution

The fourth proportional to 8,939.92, 13,407.27 and 3,389.26 is: 5,082.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,939.92 : 13,407.27 = 3,389.26 : x
  2. Step 2: Convert to fraction form
    8,939.92/13,407.27 = 3,389.26/x
  3. Step 3: Cross multiply
    8,939.92x = 13,407.27 × 3,389.26
  4. Step 4: Simplify right side
    8,939.92x = 45,440,723.92
  5. Step 5: Solve for x
    x = 45,440,723.92/8,939.92
  6. Step 6: Final answer
    x = 5,082.90

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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.