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Finding the Fourth Proportional to 8,751.28, 12,076.92 and 4,772.56

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Solution

The fourth proportional to 8,751.28, 12,076.92 and 4,772.56 is: 6,586.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,751.28 : 12,076.92 = 4,772.56 : x
  2. Step 2: Convert to fraction form
    8,751.28/12,076.92 = 4,772.56/x
  3. Step 3: Cross multiply
    8,751.28x = 12,076.92 × 4,772.56
  4. Step 4: Simplify right side
    8,751.28x = 57,637,825.32
  5. Step 5: Solve for x
    x = 57,637,825.32/8,751.28
  6. Step 6: Final answer
    x = 6,586.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.