Home / 11,939.09-17,922.26-9,309.42

Finding the Fourth Proportional to 11,939.09, 17,922.26 and 9,309.42

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Solution

The fourth proportional to 11,939.09, 17,922.26 and 9,309.42 is: 13,974.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,939.09 : 17,922.26 = 9,309.42 : x
  2. Step 2: Convert to fraction form
    11,939.09/17,922.26 = 9,309.42/x
  3. Step 3: Cross multiply
    11,939.09x = 17,922.26 × 9,309.42
  4. Step 4: Simplify right side
    11,939.09x = 166,845,799.14
  5. Step 5: Solve for x
    x = 166,845,799.14/11,939.09
  6. Step 6: Final answer
    x = 13,974.76

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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.