Home / 18,027.30-27,055.26-12,519.66

Finding the Fourth Proportional to 18,027.30, 27,055.26 and 12,519.66

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Solution

The fourth proportional to 18,027.30, 27,055.26 and 12,519.66 is: 18,789.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,027.30 : 27,055.26 = 12,519.66 : x
  2. Step 2: Convert to fraction form
    18,027.30/27,055.26 = 12,519.66/x
  3. Step 3: Cross multiply
    18,027.30x = 27,055.26 × 12,519.66
  4. Step 4: Simplify right side
    18,027.30x = 338,722,656.41
  5. Step 5: Solve for x
    x = 338,722,656.41/18,027.30
  6. Step 6: Final answer
    x = 18,789.43

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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.