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Finding the Fourth Proportional to 11,671.97, 17,507.96 and 3,880.79

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Solution

The fourth proportional to 11,671.97, 17,507.96 and 3,880.79 is: 5,821.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,671.97 : 17,507.96 = 3,880.79 : x
  2. Step 2: Convert to fraction form
    11,671.97/17,507.96 = 3,880.79/x
  3. Step 3: Cross multiply
    11,671.97x = 17,507.96 × 3,880.79
  4. Step 4: Simplify right side
    11,671.97x = 67,944,638.25
  5. Step 5: Solve for x
    x = 67,944,638.25/11,671.97
  6. Step 6: Final answer
    x = 5,821.18

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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.