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Finding the Fourth Proportional to 8,109.44, 11,191.05 and 4,383.44

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Solution

The fourth proportional to 8,109.44, 11,191.05 and 4,383.44 is: 6,049.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,109.44 : 11,191.05 = 4,383.44 : x
  2. Step 2: Convert to fraction form
    8,109.44/11,191.05 = 4,383.44/x
  3. Step 3: Cross multiply
    8,109.44x = 11,191.05 × 4,383.44
  4. Step 4: Simplify right side
    8,109.44x = 49,055,274.29
  5. Step 5: Solve for x
    x = 49,055,274.29/8,109.44
  6. Step 6: Final answer
    x = 6,049.16

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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.