Home / 9,786.20-14,680.20-2,766.20

Finding the Fourth Proportional to 9,786.20, 14,680.20 and 2,766.20

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Solution

The fourth proportional to 9,786.20, 14,680.20 and 2,766.20 is: 4,149.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,786.20 : 14,680.20 = 2,766.20 : x
  2. Step 2: Convert to fraction form
    9,786.20/14,680.20 = 2,766.20/x
  3. Step 3: Cross multiply
    9,786.20x = 14,680.20 × 2,766.20
  4. Step 4: Simplify right side
    9,786.20x = 40,608,369.24
  5. Step 5: Solve for x
    x = 40,608,369.24/9,786.20
  6. Step 6: Final answer
    x = 4,149.55

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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.