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Finding the Fourth Proportional to 6,620.08, 9,926.97 and 3,847.55

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Solution

The fourth proportional to 6,620.08, 9,926.97 and 3,847.55 is: 5,769.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620.08 : 9,926.97 = 3,847.55 : x
  2. Step 2: Convert to fraction form
    6,620.08/9,926.97 = 3,847.55/x
  3. Step 3: Cross multiply
    6,620.08x = 9,926.97 × 3,847.55
  4. Step 4: Simplify right side
    6,620.08x = 38,194,513.42
  5. Step 5: Solve for x
    x = 38,194,513.42/6,620.08
  6. Step 6: Final answer
    x = 5,769.49

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Half scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.