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Finding the Fourth Proportional to 12,195.73, 16,823.92 and 7,711.93

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Solution

The fourth proportional to 12,195.73, 16,823.92 and 7,711.93 is: 10,638.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,195.73 : 16,823.92 = 7,711.93 : x
  2. Step 2: Convert to fraction form
    12,195.73/16,823.92 = 7,711.93/x
  3. Step 3: Cross multiply
    12,195.73x = 16,823.92 × 7,711.93
  4. Step 4: Simplify right side
    12,195.73x = 129,744,893.37
  5. Step 5: Solve for x
    x = 129,744,893.37/12,195.73
  6. Step 6: Final answer
    x = 10,638.55

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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.