Home / 13,757.38-20,636.46-3,369.12

Finding the Fourth Proportional to 13,757.38, 20,636.46 and 3,369.12

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Solution

The fourth proportional to 13,757.38, 20,636.46 and 3,369.12 is: 5,053.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,757.38 : 20,636.46 = 3,369.12 : x
  2. Step 2: Convert to fraction form
    13,757.38/20,636.46 = 3,369.12/x
  3. Step 3: Cross multiply
    13,757.38x = 20,636.46 × 3,369.12
  4. Step 4: Simplify right side
    13,757.38x = 69,526,710.12
  5. Step 5: Solve for x
    x = 69,526,710.12/13,757.38
  6. Step 6: Final answer
    x = 5,053.78

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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.