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Finding the Fourth Proportional to 8,757.28, 13,133.94 and 2,517.28

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Solution

The fourth proportional to 8,757.28, 13,133.94 and 2,517.28 is: 3,775.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,757.28 : 13,133.94 = 2,517.28 : x
  2. Step 2: Convert to fraction form
    8,757.28/13,133.94 = 2,517.28/x
  3. Step 3: Cross multiply
    8,757.28x = 13,133.94 × 2,517.28
  4. Step 4: Simplify right side
    8,757.28x = 33,061,804.48
  5. Step 5: Solve for x
    x = 33,061,804.48/8,757.28
  6. Step 6: Final answer
    x = 3,775.35

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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.