Home / 9,221.92-12,728.96-5,245.24

Finding the Fourth Proportional to 9,221.92, 12,728.96 and 5,245.24

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Solution

The fourth proportional to 9,221.92, 12,728.96 and 5,245.24 is: 7,239.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,221.92 : 12,728.96 = 5,245.24 : x
  2. Step 2: Convert to fraction form
    9,221.92/12,728.96 = 5,245.24/x
  3. Step 3: Cross multiply
    9,221.92x = 12,728.96 × 5,245.24
  4. Step 4: Simplify right side
    9,221.92x = 66,766,450.15
  5. Step 5: Solve for x
    x = 66,766,450.15/9,221.92
  6. Step 6: Final answer
    x = 7,239.97

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Double scale
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Similar ratio
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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.