Home / 13,997.69-20,996.94-3,609.44

Finding the Fourth Proportional to 13,997.69, 20,996.94 and 3,609.44

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Solution

The fourth proportional to 13,997.69, 20,996.94 and 3,609.44 is: 5,414.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,997.69 : 20,996.94 = 3,609.44 : x
  2. Step 2: Convert to fraction form
    13,997.69/20,996.94 = 3,609.44/x
  3. Step 3: Cross multiply
    13,997.69x = 20,996.94 × 3,609.44
  4. Step 4: Simplify right side
    13,997.69x = 75,787,177.07
  5. Step 5: Solve for x
    x = 75,787,177.07/13,997.69
  6. Step 6: Final answer
    x = 5,414.26

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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.