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Finding the Fourth Proportional to 8,695.17, 13,044.78 and 3,147.48

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Solution

The fourth proportional to 8,695.17, 13,044.78 and 3,147.48 is: 4,721.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,695.17 : 13,044.78 = 3,147.48 : x
  2. Step 2: Convert to fraction form
    8,695.17/13,044.78 = 3,147.48/x
  3. Step 3: Cross multiply
    8,695.17x = 13,044.78 × 3,147.48
  4. Step 4: Simplify right side
    8,695.17x = 41,058,184.15
  5. Step 5: Solve for x
    x = 41,058,184.15/8,695.17
  6. Step 6: Final answer
    x = 4,721.95

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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.