Home / 13,387.44-20,198.04-13,350.54

Finding the Fourth Proportional to 13,387.44, 20,198.04 and 13,350.54

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Solution

The fourth proportional to 13,387.44, 20,198.04 and 13,350.54 is: 20,142.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,387.44 : 20,198.04 = 13,350.54 : x
  2. Step 2: Convert to fraction form
    13,387.44/20,198.04 = 13,350.54/x
  3. Step 3: Cross multiply
    13,387.44x = 20,198.04 × 13,350.54
  4. Step 4: Simplify right side
    13,387.44x = 269,654,740.94
  5. Step 5: Solve for x
    x = 269,654,740.94/13,387.44
  6. Step 6: Final answer
    x = 20,142.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.