Home / 18,215.10-27,321.71-5,067.59

Finding the Fourth Proportional to 18,215.10, 27,321.71 and 5,067.59

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Solution

The fourth proportional to 18,215.10, 27,321.71 and 5,067.59 is: 7,601.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,215.10 : 27,321.71 = 5,067.59 : x
  2. Step 2: Convert to fraction form
    18,215.10/27,321.71 = 5,067.59/x
  3. Step 3: Cross multiply
    18,215.10x = 27,321.71 × 5,067.59
  4. Step 4: Simplify right side
    18,215.10x = 138,455,062.43
  5. Step 5: Solve for x
    x = 138,455,062.43/18,215.10
  6. Step 6: Final answer
    x = 7,601.11

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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.