Home / 13,712.38-20,568.50-3,324.13

Finding the Fourth Proportional to 13,712.38, 20,568.50 and 3,324.13

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Solution

The fourth proportional to 13,712.38, 20,568.50 and 3,324.13 is: 4,986.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,712.38 : 20,568.50 = 3,324.13 : x
  2. Step 2: Convert to fraction form
    13,712.38/20,568.50 = 3,324.13/x
  3. Step 3: Cross multiply
    13,712.38x = 20,568.50 × 3,324.13
  4. Step 4: Simplify right side
    13,712.38x = 68,372,367.91
  5. Step 5: Solve for x
    x = 68,372,367.91/13,712.38
  6. Step 6: Final answer
    x = 4,986.18

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1.5x scale

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.