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Finding the Fourth Proportional to 8,200.79, 11,318.54 and 4,843.38

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Solution

The fourth proportional to 8,200.79, 11,318.54 and 4,843.38 is: 6,684.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,200.79 : 11,318.54 = 4,843.38 : x
  2. Step 2: Convert to fraction form
    8,200.79/11,318.54 = 4,843.38/x
  3. Step 3: Cross multiply
    8,200.79x = 11,318.54 × 4,843.38
  4. Step 4: Simplify right side
    8,200.79x = 54,819,990.27
  5. Step 5: Solve for x
    x = 54,819,990.27/8,200.79
  6. Step 6: Final answer
    x = 6,684.72

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Half scale
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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.