Home / 11,286.68-16,940.96-5,447.40

Finding the Fourth Proportional to 11,286.68, 16,940.96 and 5,447.40

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Solution

The fourth proportional to 11,286.68, 16,940.96 and 5,447.40 is: 8,176.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,286.68 : 16,940.96 = 5,447.40 : x
  2. Step 2: Convert to fraction form
    11,286.68/16,940.96 = 5,447.40/x
  3. Step 3: Cross multiply
    11,286.68x = 16,940.96 × 5,447.40
  4. Step 4: Simplify right side
    11,286.68x = 92,284,185.50
  5. Step 5: Solve for x
    x = 92,284,185.50/11,286.68
  6. Step 6: Final answer
    x = 8,176.38

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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.