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Finding the Fourth Proportional to 12,262.44, 16,921.65 and 7,226.87

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Solution

The fourth proportional to 12,262.44, 16,921.65 and 7,226.87 is: 9,972.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,262.44 : 16,921.65 = 7,226.87 : x
  2. Step 2: Convert to fraction form
    12,262.44/16,921.65 = 7,226.87/x
  3. Step 3: Cross multiply
    12,262.44x = 16,921.65 × 7,226.87
  4. Step 4: Simplify right side
    12,262.44x = 122,290,522.43
  5. Step 5: Solve for x
    x = 122,290,522.43/12,262.44
  6. Step 6: Final answer
    x = 9,972.78

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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.