Home / 7,728.32-11,600.04-5,540.96

Finding the Fourth Proportional to 7,728.32, 11,600.04 and 5,540.96

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Solution

The fourth proportional to 7,728.32, 11,600.04 and 5,540.96 is: 8,316.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,728.32 : 11,600.04 = 5,540.96 : x
  2. Step 2: Convert to fraction form
    7,728.32/11,600.04 = 5,540.96/x
  3. Step 3: Cross multiply
    7,728.32x = 11,600.04 × 5,540.96
  4. Step 4: Simplify right side
    7,728.32x = 64,275,357.64
  5. Step 5: Solve for x
    x = 64,275,357.64/7,728.32
  6. Step 6: Final answer
    x = 8,316.86

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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.