Home / 12,196.80-18,273.33-11,540.70

Finding the Fourth Proportional to 12,196.80, 18,273.33 and 11,540.70

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Solution

The fourth proportional to 12,196.80, 18,273.33 and 11,540.70 is: 17,290.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,196.80 : 18,273.33 = 11,540.70 : x
  2. Step 2: Convert to fraction form
    12,196.80/18,273.33 = 11,540.70/x
  3. Step 3: Cross multiply
    12,196.80x = 18,273.33 × 11,540.70
  4. Step 4: Simplify right side
    12,196.80x = 210,887,019.53
  5. Step 5: Solve for x
    x = 210,887,019.53/12,196.80
  6. Step 6: Final answer
    x = 17,290.36

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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.