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Finding the Fourth Proportional to 16,491.92, 22,758.91 and 8,938.23

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Solution

The fourth proportional to 16,491.92, 22,758.91 and 8,938.23 is: 12,334.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,491.92 : 22,758.91 = 8,938.23 : x
  2. Step 2: Convert to fraction form
    16,491.92/22,758.91 = 8,938.23/x
  3. Step 3: Cross multiply
    16,491.92x = 22,758.91 × 8,938.23
  4. Step 4: Simplify right side
    16,491.92x = 203,424,258.33
  5. Step 5: Solve for x
    x = 203,424,258.33/16,491.92
  6. Step 6: Final answer
    x = 12,334.79

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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.