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Finding the Fourth Proportional to 8,602.26, 12,905.22 and 2,762.97

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Solution

The fourth proportional to 8,602.26, 12,905.22 and 2,762.97 is: 4,145.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,602.26 : 12,905.22 = 2,762.97 : x
  2. Step 2: Convert to fraction form
    8,602.26/12,905.22 = 2,762.97/x
  3. Step 3: Cross multiply
    8,602.26x = 12,905.22 × 2,762.97
  4. Step 4: Simplify right side
    8,602.26x = 35,656,735.70
  5. Step 5: Solve for x
    x = 35,656,735.70/8,602.26
  6. Step 6: Final answer
    x = 4,145.04

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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.