Home / 12,072.68-18,109.92-4,174.88

Finding the Fourth Proportional to 12,072.68, 18,109.92 and 4,174.88

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Solution

The fourth proportional to 12,072.68, 18,109.92 and 4,174.88 is: 6,262.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,072.68 : 18,109.92 = 4,174.88 : x
  2. Step 2: Convert to fraction form
    12,072.68/18,109.92 = 4,174.88/x
  3. Step 3: Cross multiply
    12,072.68x = 18,109.92 × 4,174.88
  4. Step 4: Simplify right side
    12,072.68x = 75,606,652.26
  5. Step 5: Solve for x
    x = 75,606,652.26/12,072.68
  6. Step 6: Final answer
    x = 6,262.63

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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.