Home / 12,375.23-17,078.60-6,786.23

Finding the Fourth Proportional to 12,375.23, 17,078.60 and 6,786.23

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Solution

The fourth proportional to 12,375.23, 17,078.60 and 6,786.23 is: 9,365.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,375.23 : 17,078.60 = 6,786.23 : x
  2. Step 2: Convert to fraction form
    12,375.23/17,078.60 = 6,786.23/x
  3. Step 3: Cross multiply
    12,375.23x = 17,078.60 × 6,786.23
  4. Step 4: Simplify right side
    12,375.23x = 115,899,273.75
  5. Step 5: Solve for x
    x = 115,899,273.75/12,375.23
  6. Step 6: Final answer
    x = 9,365.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.