Home / 18,128.88-27,167.58-7,587.54

Finding the Fourth Proportional to 18,128.88, 27,167.58 and 7,587.54

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Solution

The fourth proportional to 18,128.88, 27,167.58 and 7,587.54 is: 11,370.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,128.88 : 27,167.58 = 7,587.54 : x
  2. Step 2: Convert to fraction form
    18,128.88/27,167.58 = 7,587.54/x
  3. Step 3: Cross multiply
    18,128.88x = 27,167.58 × 7,587.54
  4. Step 4: Simplify right side
    18,128.88x = 206,135,099.95
  5. Step 5: Solve for x
    x = 206,135,099.95/18,128.88
  6. Step 6: Final answer
    x = 11,370.54

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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.