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Finding the Fourth Proportional to 12,250.76, 16,906.16 and 6,661.76

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Solution

The fourth proportional to 12,250.76, 16,906.16 and 6,661.76 is: 9,193.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,250.76 : 16,906.16 = 6,661.76 : x
  2. Step 2: Convert to fraction form
    12,250.76/16,906.16 = 6,661.76/x
  3. Step 3: Cross multiply
    12,250.76x = 16,906.16 × 6,661.76
  4. Step 4: Simplify right side
    12,250.76x = 112,624,780.44
  5. Step 5: Solve for x
    x = 112,624,780.44/12,250.76
  6. Step 6: Final answer
    x = 9,193.29

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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.