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Finding the Fourth Proportional to 18,675.27, 27,983.72 and 11,735.19

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Solution

The fourth proportional to 18,675.27, 27,983.72 and 11,735.19 is: 17,584.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,675.27 : 27,983.72 = 11,735.19 : x
  2. Step 2: Convert to fraction form
    18,675.27/27,983.72 = 11,735.19/x
  3. Step 3: Cross multiply
    18,675.27x = 27,983.72 × 11,735.19
  4. Step 4: Simplify right side
    18,675.27x = 328,394,212.43
  5. Step 5: Solve for x
    x = 328,394,212.43/18,675.27
  6. Step 6: Final answer
    x = 17,584.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.