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Finding the Fourth Proportional to 12,199.72, 16,835.68 and 6,610.72

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Solution

The fourth proportional to 12,199.72, 16,835.68 and 6,610.72 is: 9,122.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,199.72 : 16,835.68 = 6,610.72 : x
  2. Step 2: Convert to fraction form
    12,199.72/16,835.68 = 6,610.72/x
  3. Step 3: Cross multiply
    12,199.72x = 16,835.68 × 6,610.72
  4. Step 4: Simplify right side
    12,199.72x = 111,295,966.49
  5. Step 5: Solve for x
    x = 111,295,966.49/12,199.72
  6. Step 6: Final answer
    x = 9,122.83

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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.