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Finding the Fourth Proportional to 8,194.20, 12,323.70 and 7,351.80

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Solution

The fourth proportional to 8,194.20, 12,323.70 and 7,351.80 is: 11,056.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,194.20 : 12,323.70 = 7,351.80 : x
  2. Step 2: Convert to fraction form
    8,194.20/12,323.70 = 7,351.80/x
  3. Step 3: Cross multiply
    8,194.20x = 12,323.70 × 7,351.80
  4. Step 4: Simplify right side
    8,194.20x = 90,601,377.66
  5. Step 5: Solve for x
    x = 90,601,377.66/8,194.20
  6. Step 6: Final answer
    x = 11,056.77

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.