Home / 18,118.62-27,177.12-5,638.14

Finding the Fourth Proportional to 18,118.62, 27,177.12 and 5,638.14

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Solution

The fourth proportional to 18,118.62, 27,177.12 and 5,638.14 is: 8,456.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,118.62 : 27,177.12 = 5,638.14 : x
  2. Step 2: Convert to fraction form
    18,118.62/27,177.12 = 5,638.14/x
  3. Step 3: Cross multiply
    18,118.62x = 27,177.12 × 5,638.14
  4. Step 4: Simplify right side
    18,118.62x = 153,228,407.36
  5. Step 5: Solve for x
    x = 153,228,407.36/18,118.62
  6. Step 6: Final answer
    x = 8,456.96

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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.