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Finding the Fourth Proportional to 13,198.60, 19,797.90 and 8,273.80

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Solution

The fourth proportional to 13,198.60, 19,797.90 and 8,273.80 is: 12,410.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,198.60 : 19,797.90 = 8,273.80 : x
  2. Step 2: Convert to fraction form
    13,198.60/19,797.90 = 8,273.80/x
  3. Step 3: Cross multiply
    13,198.60x = 19,797.90 × 8,273.80
  4. Step 4: Simplify right side
    13,198.60x = 163,803,865.02
  5. Step 5: Solve for x
    x = 163,803,865.02/13,198.60
  6. Step 6: Final answer
    x = 12,410.70

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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.