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Finding the Fourth Proportional to 16,939.22, 23,373.79 and 9,383.68

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Solution

The fourth proportional to 16,939.22, 23,373.79 and 9,383.68 is: 12,948.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,939.22 : 23,373.79 = 9,383.68 : x
  2. Step 2: Convert to fraction form
    16,939.22/23,373.79 = 9,383.68/x
  3. Step 3: Cross multiply
    16,939.22x = 23,373.79 × 9,383.68
  4. Step 4: Simplify right side
    16,939.22x = 219,332,165.75
  5. Step 5: Solve for x
    x = 219,332,165.75/16,939.22
  6. Step 6: Final answer
    x = 12,948.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.