Home / 11,956.06-17,934.90-3,190.78

Finding the Fourth Proportional to 11,956.06, 17,934.90 and 3,190.78

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Solution

The fourth proportional to 11,956.06, 17,934.90 and 3,190.78 is: 4,786.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,956.06 : 17,934.90 = 3,190.78 : x
  2. Step 2: Convert to fraction form
    11,956.06/17,934.90 = 3,190.78/x
  3. Step 3: Cross multiply
    11,956.06x = 17,934.90 × 3,190.78
  4. Step 4: Simplify right side
    11,956.06x = 57,226,320.22
  5. Step 5: Solve for x
    x = 57,226,320.22/11,956.06
  6. Step 6: Final answer
    x = 4,786.39

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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.