Home / 8,771.25-12,100.68-5,745.51

Finding the Fourth Proportional to 8,771.25, 12,100.68 and 5,745.51

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Solution

The fourth proportional to 8,771.25, 12,100.68 and 5,745.51 is: 7,926.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,771.25 : 12,100.68 = 5,745.51 : x
  2. Step 2: Convert to fraction form
    8,771.25/12,100.68 = 5,745.51/x
  3. Step 3: Cross multiply
    8,771.25x = 12,100.68 × 5,745.51
  4. Step 4: Simplify right side
    8,771.25x = 69,524,577.95
  5. Step 5: Solve for x
    x = 69,524,577.95/8,771.25
  6. Step 6: Final answer
    x = 7,926.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.