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Finding the Fourth Proportional to 8,155.28, 11,253.92 and 4,618.41

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Solution

The fourth proportional to 8,155.28, 11,253.92 and 4,618.41 is: 6,373.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,155.28 : 11,253.92 = 4,618.41 : x
  2. Step 2: Convert to fraction form
    8,155.28/11,253.92 = 4,618.41/x
  3. Step 3: Cross multiply
    8,155.28x = 11,253.92 × 4,618.41
  4. Step 4: Simplify right side
    8,155.28x = 51,975,193.58
  5. Step 5: Solve for x
    x = 51,975,193.58/8,155.28
  6. Step 6: Final answer
    x = 6,373.20

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