Home / 18,658.13-27,987.20-6,174.80

Finding the Fourth Proportional to 18,658.13, 27,987.20 and 6,174.80

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Solution

The fourth proportional to 18,658.13, 27,987.20 and 6,174.80 is: 9,262.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,658.13 : 27,987.20 = 6,174.80 : x
  2. Step 2: Convert to fraction form
    18,658.13/27,987.20 = 6,174.80/x
  3. Step 3: Cross multiply
    18,658.13x = 27,987.20 × 6,174.80
  4. Step 4: Simplify right side
    18,658.13x = 172,815,362.56
  5. Step 5: Solve for x
    x = 172,815,362.56/18,658.13
  6. Step 6: Final answer
    x = 9,262.20

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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.