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Finding the Fourth Proportional to 10,568, 15,860.60 and 5,375.36

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Solution

The fourth proportional to 10,568, 15,860.60 and 5,375.36 is: 8,067.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,568 : 15,860.60 = 5,375.36 : x
  2. Step 2: Convert to fraction form
    10,568/15,860.60 = 5,375.36/x
  3. Step 3: Cross multiply
    10,568x = 15,860.60 × 5,375.36
  4. Step 4: Simplify right side
    10,568x = 85,256,434.82
  5. Step 5: Solve for x
    x = 85,256,434.82/10,568
  6. Step 6: Final answer
    x = 8,067.41

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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.