Home / 11,131.35-16,689.62-6,678.99

Finding the Fourth Proportional to 11,131.35, 16,689.62 and 6,678.99

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Solution

The fourth proportional to 11,131.35, 16,689.62 and 6,678.99 is: 10,014.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,131.35 : 16,689.62 = 6,678.99 : x
  2. Step 2: Convert to fraction form
    11,131.35/16,689.62 = 6,678.99/x
  3. Step 3: Cross multiply
    11,131.35x = 16,689.62 × 6,678.99
  4. Step 4: Simplify right side
    11,131.35x = 111,469,771.69
  5. Step 5: Solve for x
    x = 111,469,771.69/11,131.35
  6. Step 6: Final answer
    x = 10,014.04

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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.