Home / 17,147.40-25,721.10-10,552.20

Finding the Fourth Proportional to 17,147.40, 25,721.10 and 10,552.20

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Solution

The fourth proportional to 17,147.40, 25,721.10 and 10,552.20 is: 15,828.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,147.40 : 25,721.10 = 10,552.20 : x
  2. Step 2: Convert to fraction form
    17,147.40/25,721.10 = 10,552.20/x
  3. Step 3: Cross multiply
    17,147.40x = 25,721.10 × 10,552.20
  4. Step 4: Simplify right side
    17,147.40x = 271,414,191.42
  5. Step 5: Solve for x
    x = 271,414,191.42/17,147.40
  6. Step 6: Final answer
    x = 15,828.30

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Similar ratio
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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.