Home / 10,899.20-16,318.11-6,940.73

Finding the Fourth Proportional to 10,899.20, 16,318.11 and 6,940.73

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Solution

The fourth proportional to 10,899.20, 16,318.11 and 6,940.73 is: 10,391.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,899.20 : 16,318.11 = 6,940.73 : x
  2. Step 2: Convert to fraction form
    10,899.20/16,318.11 = 6,940.73/x
  3. Step 3: Cross multiply
    10,899.20x = 16,318.11 × 6,940.73
  4. Step 4: Simplify right side
    10,899.20x = 113,259,595.62
  5. Step 5: Solve for x
    x = 113,259,595.62/10,899.20
  6. Step 6: Final answer
    x = 10,391.55

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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.