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Finding the Fourth Proportional to 8,811.28, 13,208.43 and 3,263.11

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Solution

The fourth proportional to 8,811.28, 13,208.43 and 3,263.11 is: 4,891.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,811.28 : 13,208.43 = 3,263.11 : x
  2. Step 2: Convert to fraction form
    8,811.28/13,208.43 = 3,263.11/x
  3. Step 3: Cross multiply
    8,811.28x = 13,208.43 × 3,263.11
  4. Step 4: Simplify right side
    8,811.28x = 43,100,560.02
  5. Step 5: Solve for x
    x = 43,100,560.02/8,811.28
  6. Step 6: Final answer
    x = 4,891.52

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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.