Home / 18,519.33-27,779.91-5,372.73

Finding the Fourth Proportional to 18,519.33, 27,779.91 and 5,372.73

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Solution

The fourth proportional to 18,519.33, 27,779.91 and 5,372.73 is: 8,059.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,519.33 : 27,779.91 = 5,372.73 : x
  2. Step 2: Convert to fraction form
    18,519.33/27,779.91 = 5,372.73/x
  3. Step 3: Cross multiply
    18,519.33x = 27,779.91 × 5,372.73
  4. Step 4: Simplify right side
    18,519.33x = 149,253,965.93
  5. Step 5: Solve for x
    x = 149,253,965.93/18,519.33
  6. Step 6: Final answer
    x = 8,059.36

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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.