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Finding the Fourth Proportional to 8,917.18, 13,375.80 and 2,342.81

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Solution

The fourth proportional to 8,917.18, 13,375.80 and 2,342.81 is: 3,514.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,917.18 : 13,375.80 = 2,342.81 : x
  2. Step 2: Convert to fraction form
    8,917.18/13,375.80 = 2,342.81/x
  3. Step 3: Cross multiply
    8,917.18x = 13,375.80 × 2,342.81
  4. Step 4: Simplify right side
    8,917.18x = 31,336,991.44
  5. Step 5: Solve for x
    x = 31,336,991.44/8,917.18
  6. Step 6: Final answer
    x = 3,514.23

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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.