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Finding the Fourth Proportional to 8,871.75, 13,309.88 and 3,325.11

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Solution

The fourth proportional to 8,871.75, 13,309.88 and 3,325.11 is: 4,988.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,871.75 : 13,309.88 = 3,325.11 : x
  2. Step 2: Convert to fraction form
    8,871.75/13,309.88 = 3,325.11/x
  3. Step 3: Cross multiply
    8,871.75x = 13,309.88 × 3,325.11
  4. Step 4: Simplify right side
    8,871.75x = 44,256,798.46
  5. Step 5: Solve for x
    x = 44,256,798.46/8,871.75
  6. Step 6: Final answer
    x = 4,988.51

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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.