Home / 7,766.08-11,642.54-3,380.20

Finding the Fourth Proportional to 7,766.08, 11,642.54 and 3,380.20

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Solution

The fourth proportional to 7,766.08, 11,642.54 and 3,380.20 is: 5,067.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,766.08 : 11,642.54 = 3,380.20 : x
  2. Step 2: Convert to fraction form
    7,766.08/11,642.54 = 3,380.20/x
  3. Step 3: Cross multiply
    7,766.08x = 11,642.54 × 3,380.20
  4. Step 4: Simplify right side
    7,766.08x = 39,354,067.70
  5. Step 5: Solve for x
    x = 39,354,067.70/7,766.08
  6. Step 6: Final answer
    x = 5,067.43

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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.