Home / 11,992.12-17,977.22-4,196.68

Finding the Fourth Proportional to 11,992.12, 17,977.22 and 4,196.68

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Solution

The fourth proportional to 11,992.12, 17,977.22 and 4,196.68 is: 6,291.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,992.12 : 17,977.22 = 4,196.68 : x
  2. Step 2: Convert to fraction form
    11,992.12/17,977.22 = 4,196.68/x
  3. Step 3: Cross multiply
    11,992.12x = 17,977.22 × 4,196.68
  4. Step 4: Simplify right side
    11,992.12x = 75,444,528.76
  5. Step 5: Solve for x
    x = 75,444,528.76/11,992.12
  6. Step 6: Final answer
    x = 6,291.18

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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.