Home / 11,977.26-17,964.46-3,212.79

Finding the Fourth Proportional to 11,977.26, 17,964.46 and 3,212.79

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Solution

The fourth proportional to 11,977.26, 17,964.46 and 3,212.79 is: 4,818.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,977.26 : 17,964.46 = 3,212.79 : x
  2. Step 2: Convert to fraction form
    11,977.26/17,964.46 = 3,212.79/x
  3. Step 3: Cross multiply
    11,977.26x = 17,964.46 × 3,212.79
  4. Step 4: Simplify right side
    11,977.26x = 57,716,037.44
  5. Step 5: Solve for x
    x = 57,716,037.44/11,977.26
  6. Step 6: Final answer
    x = 4,818.80

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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.