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Finding the Fourth Proportional to 8,243.47, 12,367.18 and 2,696.90

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Solution

The fourth proportional to 8,243.47, 12,367.18 and 2,696.90 is: 4,045.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,243.47 : 12,367.18 = 2,696.90 : x
  2. Step 2: Convert to fraction form
    8,243.47/12,367.18 = 2,696.90/x
  3. Step 3: Cross multiply
    8,243.47x = 12,367.18 × 2,696.90
  4. Step 4: Simplify right side
    8,243.47x = 33,352,989.28
  5. Step 5: Solve for x
    x = 33,352,989.28/8,243.47
  6. Step 6: Final answer
    x = 4,045.99

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1.5x scale

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.