Home / 8,229.80-11,358.20-5,399.60

Finding the Fourth Proportional to 8,229.80, 11,358.20 and 5,399.60

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Solution

The fourth proportional to 8,229.80, 11,358.20 and 5,399.60 is: 7,452.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,229.80 : 11,358.20 = 5,399.60 : x
  2. Step 2: Convert to fraction form
    8,229.80/11,358.20 = 5,399.60/x
  3. Step 3: Cross multiply
    8,229.80x = 11,358.20 × 5,399.60
  4. Step 4: Simplify right side
    8,229.80x = 61,329,693.43
  5. Step 5: Solve for x
    x = 61,329,693.43/8,229.80
  6. Step 6: Final answer
    x = 7,452.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.