Home / 12,791.44-19,189.78-5,395.92

Finding the Fourth Proportional to 12,791.44, 19,189.78 and 5,395.92

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Solution

The fourth proportional to 12,791.44, 19,189.78 and 5,395.92 is: 8,094.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,791.44 : 19,189.78 = 5,395.92 : x
  2. Step 2: Convert to fraction form
    12,791.44/19,189.78 = 5,395.92/x
  3. Step 3: Cross multiply
    12,791.44x = 19,189.78 × 5,395.92
  4. Step 4: Simplify right side
    12,791.44x = 103,546,517.70
  5. Step 5: Solve for x
    x = 103,546,517.70/12,791.44
  6. Step 6: Final answer
    x = 8,094.99

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.