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Finding the Fourth Proportional to 8,463.06, 12,695.81 and 2,620.17

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Solution

The fourth proportional to 8,463.06, 12,695.81 and 2,620.17 is: 3,930.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,463.06 : 12,695.81 = 2,620.17 : x
  2. Step 2: Convert to fraction form
    8,463.06/12,695.81 = 2,620.17/x
  3. Step 3: Cross multiply
    8,463.06x = 12,695.81 × 2,620.17
  4. Step 4: Simplify right side
    8,463.06x = 33,265,167.39
  5. Step 5: Solve for x
    x = 33,265,167.39/8,463.06
  6. Step 6: Final answer
    x = 3,930.63

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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.