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Finding the Fourth Proportional to 8,630.03, 12,936.33 and 3,361.75

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Solution

The fourth proportional to 8,630.03, 12,936.33 and 3,361.75 is: 5,039.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,630.03 : 12,936.33 = 3,361.75 : x
  2. Step 2: Convert to fraction form
    8,630.03/12,936.33 = 3,361.75/x
  3. Step 3: Cross multiply
    8,630.03x = 12,936.33 × 3,361.75
  4. Step 4: Simplify right side
    8,630.03x = 43,488,707.38
  5. Step 5: Solve for x
    x = 43,488,707.38/8,630.03
  6. Step 6: Final answer
    x = 5,039.23

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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.