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Finding the Fourth Proportional to 16,944.70, 23,383.86 and 9,391.20

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Solution

The fourth proportional to 16,944.70, 23,383.86 and 9,391.20 is: 12,959.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,944.70 : 23,383.86 = 9,391.20 : x
  2. Step 2: Convert to fraction form
    16,944.70/23,383.86 = 9,391.20/x
  3. Step 3: Cross multiply
    16,944.70x = 23,383.86 × 9,391.20
  4. Step 4: Simplify right side
    16,944.70x = 219,602,389.11
  5. Step 5: Solve for x
    x = 219,602,389.11/16,944.70
  6. Step 6: Final answer
    x = 12,959.95

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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.