Home / 7,766.20-11,653.98-3,085.36

Finding the Fourth Proportional to 7,766.20, 11,653.98 and 3,085.36

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Solution

The fourth proportional to 7,766.20, 11,653.98 and 3,085.36 is: 4,629.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,766.20 : 11,653.98 = 3,085.36 : x
  2. Step 2: Convert to fraction form
    7,766.20/11,653.98 = 3,085.36/x
  3. Step 3: Cross multiply
    7,766.20x = 11,653.98 × 3,085.36
  4. Step 4: Simplify right side
    7,766.20x = 35,956,723.73
  5. Step 5: Solve for x
    x = 35,956,723.73/7,766.20
  6. Step 6: Final answer
    x = 4,629.90

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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.