Home / 18,179.25-25,087.77-11,109.57

Finding the Fourth Proportional to 18,179.25, 25,087.77 and 11,109.57

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Solution

The fourth proportional to 18,179.25, 25,087.77 and 11,109.57 is: 15,331.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,179.25 : 25,087.77 = 11,109.57 : x
  2. Step 2: Convert to fraction form
    18,179.25/25,087.77 = 11,109.57/x
  3. Step 3: Cross multiply
    18,179.25x = 25,087.77 × 11,109.57
  4. Step 4: Simplify right side
    18,179.25x = 278,714,336.96
  5. Step 5: Solve for x
    x = 278,714,336.96/18,179.25
  6. Step 6: Final answer
    x = 15,331.45

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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.