Home / 13,458.48-20,171.25-10,161.24

Finding the Fourth Proportional to 13,458.48, 20,171.25 and 10,161.24

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Solution

The fourth proportional to 13,458.48, 20,171.25 and 10,161.24 is: 15,229.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,458.48 : 20,171.25 = 10,161.24 : x
  2. Step 2: Convert to fraction form
    13,458.48/20,171.25 = 10,161.24/x
  3. Step 3: Cross multiply
    13,458.48x = 20,171.25 × 10,161.24
  4. Step 4: Simplify right side
    13,458.48x = 204,964,912.35
  5. Step 5: Solve for x
    x = 204,964,912.35/13,458.48
  6. Step 6: Final answer
    x = 15,229.43

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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.