Home / 11,778.11-17,661.58-3,455.97

Finding the Fourth Proportional to 11,778.11, 17,661.58 and 3,455.97

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Solution

The fourth proportional to 11,778.11, 17,661.58 and 3,455.97 is: 5,182.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,778.11 : 17,661.58 = 3,455.97 : x
  2. Step 2: Convert to fraction form
    11,778.11/17,661.58 = 3,455.97/x
  3. Step 3: Cross multiply
    11,778.11x = 17,661.58 × 3,455.97
  4. Step 4: Simplify right side
    11,778.11x = 61,037,815.76
  5. Step 5: Solve for x
    x = 61,037,815.76/11,778.11
  6. Step 6: Final answer
    x = 5,182.31

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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.