Home / 19,687.12-27,171.12-11,734

Finding the Fourth Proportional to 19,687.12, 27,171.12 and 11,734

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Solution

The fourth proportional to 19,687.12, 27,171.12 and 11,734 is: 16,194.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,687.12 : 27,171.12 = 11,734 : x
  2. Step 2: Convert to fraction form
    19,687.12/27,171.12 = 11,734/x
  3. Step 3: Cross multiply
    19,687.12x = 27,171.12 × 11,734
  4. Step 4: Simplify right side
    19,687.12x = 318,825,922.08
  5. Step 5: Solve for x
    x = 318,825,922.08/19,687.12
  6. Step 6: Final answer
    x = 16,194.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.