Home / 11,108.92-16,666.11-7,828.42

Finding the Fourth Proportional to 11,108.92, 16,666.11 and 7,828.42

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Solution

The fourth proportional to 11,108.92, 16,666.11 and 7,828.42 is: 11,744.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,108.92 : 16,666.11 = 7,828.42 : x
  2. Step 2: Convert to fraction form
    11,108.92/16,666.11 = 7,828.42/x
  3. Step 3: Cross multiply
    11,108.92x = 16,666.11 × 7,828.42
  4. Step 4: Simplify right side
    11,108.92x = 130,469,308.85
  5. Step 5: Solve for x
    x = 130,469,308.85/11,108.92
  6. Step 6: Final answer
    x = 11,744.55

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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.