Home / 13,427.38-20,138.03-5,104.43

Finding the Fourth Proportional to 13,427.38, 20,138.03 and 5,104.43

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Solution

The fourth proportional to 13,427.38, 20,138.03 and 5,104.43 is: 7,655.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,427.38 : 20,138.03 = 5,104.43 : x
  2. Step 2: Convert to fraction form
    13,427.38/20,138.03 = 5,104.43/x
  3. Step 3: Cross multiply
    13,427.38x = 20,138.03 × 5,104.43
  4. Step 4: Simplify right side
    13,427.38x = 102,793,164.47
  5. Step 5: Solve for x
    x = 102,793,164.47/13,427.38
  6. Step 6: Final answer
    x = 7,655.49

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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.