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Finding the Fourth Proportional to 13,247.74, 18,281.78 and 7,197.95

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Solution

The fourth proportional to 13,247.74, 18,281.78 and 7,197.95 is: 9,933.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,247.74 : 18,281.78 = 7,197.95 : x
  2. Step 2: Convert to fraction form
    13,247.74/18,281.78 = 7,197.95/x
  3. Step 3: Cross multiply
    13,247.74x = 18,281.78 × 7,197.95
  4. Step 4: Simplify right side
    13,247.74x = 131,591,338.35
  5. Step 5: Solve for x
    x = 131,591,338.35/13,247.74
  6. Step 6: Final answer
    x = 9,933.12

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.