Home / 13,392.60-20,091.42-5,387.97

Finding the Fourth Proportional to 13,392.60, 20,091.42 and 5,387.97

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Solution

The fourth proportional to 13,392.60, 20,091.42 and 5,387.97 is: 8,082.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,392.60 : 20,091.42 = 5,387.97 : x
  2. Step 2: Convert to fraction form
    13,392.60/20,091.42 = 5,387.97/x
  3. Step 3: Cross multiply
    13,392.60x = 20,091.42 × 5,387.97
  4. Step 4: Simplify right side
    13,392.60x = 108,251,968.22
  5. Step 5: Solve for x
    x = 108,251,968.22/13,392.60
  6. Step 6: Final answer
    x = 8,082.97

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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.