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Finding the Fourth Proportional to 11,583.28, 17,375.28 and 3,791.20

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Solution

The fourth proportional to 11,583.28, 17,375.28 and 3,791.20 is: 5,686.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,583.28 : 17,375.28 = 3,791.20 : x
  2. Step 2: Convert to fraction form
    11,583.28/17,375.28 = 3,791.20/x
  3. Step 3: Cross multiply
    11,583.28x = 17,375.28 × 3,791.20
  4. Step 4: Simplify right side
    11,583.28x = 65,873,161.54
  5. Step 5: Solve for x
    x = 65,873,161.54/11,583.28
  6. Step 6: Final answer
    x = 5,686.92

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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.