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Finding the Fourth Proportional to 8,901, 13,351.68 and 2,745

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Solution

The fourth proportional to 8,901, 13,351.68 and 2,745 is: 4,117.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,901 : 13,351.68 = 2,745 : x
  2. Step 2: Convert to fraction form
    8,901/13,351.68 = 2,745/x
  3. Step 3: Cross multiply
    8,901x = 13,351.68 × 2,745
  4. Step 4: Simplify right side
    8,901x = 36,650,361.60
  5. Step 5: Solve for x
    x = 36,650,361.60/8,901
  6. Step 6: Final answer
    x = 4,117.56

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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.