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Finding the Fourth Proportional to 12,124.92, 16,728.48 and 7,343.34

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Solution

The fourth proportional to 12,124.92, 16,728.48 and 7,343.34 is: 10,131.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,124.92 : 16,728.48 = 7,343.34 : x
  2. Step 2: Convert to fraction form
    12,124.92/16,728.48 = 7,343.34/x
  3. Step 3: Cross multiply
    12,124.92x = 16,728.48 × 7,343.34
  4. Step 4: Simplify right side
    12,124.92x = 122,842,916.32
  5. Step 5: Solve for x
    x = 122,842,916.32/12,124.92
  6. Step 6: Final answer
    x = 10,131.44

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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.