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Finding the Fourth Proportional to 8,881.20, 13,322.04 and 4,203.42

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Solution

The fourth proportional to 8,881.20, 13,322.04 and 4,203.42 is: 6,305.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,881.20 : 13,322.04 = 4,203.42 : x
  2. Step 2: Convert to fraction form
    8,881.20/13,322.04 = 4,203.42/x
  3. Step 3: Cross multiply
    8,881.20x = 13,322.04 × 4,203.42
  4. Step 4: Simplify right side
    8,881.20x = 55,998,129.38
  5. Step 5: Solve for x
    x = 55,998,129.38/8,881.20
  6. Step 6: Final answer
    x = 6,305.24

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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.