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Finding the Fourth Proportional to 13,944.92, 19,243.95 and 8,355.92

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Solution

The fourth proportional to 13,944.92, 19,243.95 and 8,355.92 is: 11,531.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,944.92 : 19,243.95 = 8,355.92 : x
  2. Step 2: Convert to fraction form
    13,944.92/19,243.95 = 8,355.92/x
  3. Step 3: Cross multiply
    13,944.92x = 19,243.95 × 8,355.92
  4. Step 4: Simplify right side
    13,944.92x = 160,800,906.68
  5. Step 5: Solve for x
    x = 160,800,906.68/13,944.92
  6. Step 6: Final answer
    x = 11,531.15

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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.