Home / 18,238.62-27,378.09-13,067.58

Finding the Fourth Proportional to 18,238.62, 27,378.09 and 13,067.58

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Solution

The fourth proportional to 18,238.62, 27,378.09 and 13,067.58 is: 19,615.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,238.62 : 27,378.09 = 13,067.58 : x
  2. Step 2: Convert to fraction form
    18,238.62/27,378.09 = 13,067.58/x
  3. Step 3: Cross multiply
    18,238.62x = 27,378.09 × 13,067.58
  4. Step 4: Simplify right side
    18,238.62x = 357,765,381.32
  5. Step 5: Solve for x
    x = 357,765,381.32/18,238.62
  6. Step 6: Final answer
    x = 19,615.81

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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.