Home / 12,101.82-18,054.45-11,447.88

Finding the Fourth Proportional to 12,101.82, 18,054.45 and 11,447.88

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Solution

The fourth proportional to 12,101.82, 18,054.45 and 11,447.88 is: 17,078.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,101.82 : 18,054.45 = 11,447.88 : x
  2. Step 2: Convert to fraction form
    12,101.82/18,054.45 = 11,447.88/x
  3. Step 3: Cross multiply
    12,101.82x = 18,054.45 × 11,447.88
  4. Step 4: Simplify right side
    12,101.82x = 206,685,177.07
  5. Step 5: Solve for x
    x = 206,685,177.07/12,101.82
  6. Step 6: Final answer
    x = 17,078.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.