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Finding the Fourth Proportional to 8,227, 12,340.50 and 2,071

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Solution

The fourth proportional to 8,227, 12,340.50 and 2,071 is: 3,106.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,227 : 12,340.50 = 2,071 : x
  2. Step 2: Convert to fraction form
    8,227/12,340.50 = 2,071/x
  3. Step 3: Cross multiply
    8,227x = 12,340.50 × 2,071
  4. Step 4: Simplify right side
    8,227x = 25,557,175.50
  5. Step 5: Solve for x
    x = 25,557,175.50/8,227
  6. Step 6: Final answer
    x = 3,106.50

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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.