Home / 8,109.89-11,191.66-4,383.89

Finding the Fourth Proportional to 8,109.89, 11,191.66 and 4,383.89

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Solution

The fourth proportional to 8,109.89, 11,191.66 and 4,383.89 is: 6,049.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,109.89 : 11,191.66 = 4,383.89 : x
  2. Step 2: Convert to fraction form
    8,109.89/11,191.66 = 4,383.89/x
  3. Step 3: Cross multiply
    8,109.89x = 11,191.66 × 4,383.89
  4. Step 4: Simplify right side
    8,109.89x = 49,062,939.44
  5. Step 5: Solve for x
    x = 49,062,939.44/8,109.89
  6. Step 6: Final answer
    x = 6,049.77

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Half scale
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Double scale
Find fourth proportional to 8,110.89, 11,193.04 and 4,384.89
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.