Home / 11,778.97-17,668.31-3,458.69

Finding the Fourth Proportional to 11,778.97, 17,668.31 and 3,458.69

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Solution

The fourth proportional to 11,778.97, 17,668.31 and 3,458.69 is: 5,187.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,778.97 : 17,668.31 = 3,458.69 : x
  2. Step 2: Convert to fraction form
    11,778.97/17,668.31 = 3,458.69/x
  3. Step 3: Cross multiply
    11,778.97x = 17,668.31 × 3,458.69
  4. Step 4: Simplify right side
    11,778.97x = 61,109,110.13
  5. Step 5: Solve for x
    x = 61,109,110.13/11,778.97
  6. Step 6: Final answer
    x = 5,187.98

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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.