Home / 11,724.49-16,181.33-6,687.55

Finding the Fourth Proportional to 11,724.49, 16,181.33 and 6,687.55

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Solution

The fourth proportional to 11,724.49, 16,181.33 and 6,687.55 is: 9,229.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,724.49 : 16,181.33 = 6,687.55 : x
  2. Step 2: Convert to fraction form
    11,724.49/16,181.33 = 6,687.55/x
  3. Step 3: Cross multiply
    11,724.49x = 16,181.33 × 6,687.55
  4. Step 4: Simplify right side
    11,724.49x = 108,213,453.44
  5. Step 5: Solve for x
    x = 108,213,453.44/11,724.49
  6. Step 6: Final answer
    x = 9,229.69

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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.