Home / 8,191.08-11,299.38-5,539.38

Finding the Fourth Proportional to 8,191.08, 11,299.38 and 5,539.38

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Solution

The fourth proportional to 8,191.08, 11,299.38 and 5,539.38 is: 7,641.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,191.08 : 11,299.38 = 5,539.38 : x
  2. Step 2: Convert to fraction form
    8,191.08/11,299.38 = 5,539.38/x
  3. Step 3: Cross multiply
    8,191.08x = 11,299.38 × 5,539.38
  4. Step 4: Simplify right side
    8,191.08x = 62,591,559.58
  5. Step 5: Solve for x
    x = 62,591,559.58/8,191.08
  6. Step 6: Final answer
    x = 7,641.43

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Half scale
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Double scale
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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.