Home / 8,109.73-11,191.39-4,383.73

Finding the Fourth Proportional to 8,109.73, 11,191.39 and 4,383.73

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Solution

The fourth proportional to 8,109.73, 11,191.39 and 4,383.73 is: 6,049.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,109.73 : 11,191.39 = 4,383.73 : x
  2. Step 2: Convert to fraction form
    8,109.73/11,191.39 = 4,383.73/x
  3. Step 3: Cross multiply
    8,109.73x = 11,191.39 × 4,383.73
  4. Step 4: Simplify right side
    8,109.73x = 49,060,032.08
  5. Step 5: Solve for x
    x = 49,060,032.08/8,109.73
  6. Step 6: Final answer
    x = 6,049.53

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Half scale
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Double scale
Find fourth proportional to 8,110.73, 11,192.77 and 4,384.73
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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.