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Finding the Fourth Proportional to 6,617.92, 9,928.74 and 5,396.88

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Solution

The fourth proportional to 6,617.92, 9,928.74 and 5,396.88 is: 8,096.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,617.92 : 9,928.74 = 5,396.88 : x
  2. Step 2: Convert to fraction form
    6,617.92/9,928.74 = 5,396.88/x
  3. Step 3: Cross multiply
    6,617.92x = 9,928.74 × 5,396.88
  4. Step 4: Simplify right side
    6,617.92x = 53,584,218.33
  5. Step 5: Solve for x
    x = 53,584,218.33/6,617.92
  6. Step 6: Final answer
    x = 8,096.84

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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.