Home / 10,217.76-15,331.50-5,286.48

Finding the Fourth Proportional to 10,217.76, 15,331.50 and 5,286.48

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Solution

The fourth proportional to 10,217.76, 15,331.50 and 5,286.48 is: 7,932.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,217.76 : 15,331.50 = 5,286.48 : x
  2. Step 2: Convert to fraction form
    10,217.76/15,331.50 = 5,286.48/x
  3. Step 3: Cross multiply
    10,217.76x = 15,331.50 × 5,286.48
  4. Step 4: Simplify right side
    10,217.76x = 81,049,668.12
  5. Step 5: Solve for x
    x = 81,049,668.12/10,217.76
  6. Step 6: Final answer
    x = 7,932.23

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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.