Home / 18,534.96-27,789.20-8,668.86

Finding the Fourth Proportional to 18,534.96, 27,789.20 and 8,668.86

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Solution

The fourth proportional to 18,534.96, 27,789.20 and 8,668.86 is: 12,997.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,534.96 : 27,789.20 = 8,668.86 : x
  2. Step 2: Convert to fraction form
    18,534.96/27,789.20 = 8,668.86/x
  3. Step 3: Cross multiply
    18,534.96x = 27,789.20 × 8,668.86
  4. Step 4: Simplify right side
    18,534.96x = 240,900,593.65
  5. Step 5: Solve for x
    x = 240,900,593.65/18,534.96
  6. Step 6: Final answer
    x = 12,997.09

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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.