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Finding the Fourth Proportional to 18,616.82, 27,929.34 and 6,136.34

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Solution

The fourth proportional to 18,616.82, 27,929.34 and 6,136.34 is: 9,205.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,616.82 : 27,929.34 = 6,136.34 : x
  2. Step 2: Convert to fraction form
    18,616.82/27,929.34 = 6,136.34/x
  3. Step 3: Cross multiply
    18,616.82x = 27,929.34 × 6,136.34
  4. Step 4: Simplify right side
    18,616.82x = 171,383,786.57
  5. Step 5: Solve for x
    x = 171,383,786.57/18,616.82
  6. Step 6: Final answer
    x = 9,205.86

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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.