Home / 11,105.40-16,682.70-9,481.55

Finding the Fourth Proportional to 11,105.40, 16,682.70 and 9,481.55

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Solution

The fourth proportional to 11,105.40, 16,682.70 and 9,481.55 is: 14,243.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,105.40 : 16,682.70 = 9,481.55 : x
  2. Step 2: Convert to fraction form
    11,105.40/16,682.70 = 9,481.55/x
  3. Step 3: Cross multiply
    11,105.40x = 16,682.70 × 9,481.55
  4. Step 4: Simplify right side
    11,105.40x = 158,177,854.19
  5. Step 5: Solve for x
    x = 158,177,854.19/11,105.40
  6. Step 6: Final answer
    x = 14,243.33

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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.