Home / 12,174.38-18,262.22-3,855.28

Finding the Fourth Proportional to 12,174.38, 18,262.22 and 3,855.28

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Solution

The fourth proportional to 12,174.38, 18,262.22 and 3,855.28 is: 5,783.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,174.38 : 18,262.22 = 3,855.28 : x
  2. Step 2: Convert to fraction form
    12,174.38/18,262.22 = 3,855.28/x
  3. Step 3: Cross multiply
    12,174.38x = 18,262.22 × 3,855.28
  4. Step 4: Simplify right side
    12,174.38x = 70,405,860.93
  5. Step 5: Solve for x
    x = 70,405,860.93/12,174.38
  6. Step 6: Final answer
    x = 5,783.12

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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.