Home / 11,956.32-17,932.40-3,191.36

Finding the Fourth Proportional to 11,956.32, 17,932.40 and 3,191.36

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Solution

The fourth proportional to 11,956.32, 17,932.40 and 3,191.36 is: 4,786.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,956.32 : 17,932.40 = 3,191.36 : x
  2. Step 2: Convert to fraction form
    11,956.32/17,932.40 = 3,191.36/x
  3. Step 3: Cross multiply
    11,956.32x = 17,932.40 × 3,191.36
  4. Step 4: Simplify right side
    11,956.32x = 57,228,744.06
  5. Step 5: Solve for x
    x = 57,228,744.06/11,956.32
  6. Step 6: Final answer
    x = 4,786.48

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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.