Home / 11,003.76-16,489.44-8,217.36

Finding the Fourth Proportional to 11,003.76, 16,489.44 and 8,217.36

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Solution

The fourth proportional to 11,003.76, 16,489.44 and 8,217.36 is: 12,313.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,003.76 : 16,489.44 = 8,217.36 : x
  2. Step 2: Convert to fraction form
    11,003.76/16,489.44 = 8,217.36/x
  3. Step 3: Cross multiply
    11,003.76x = 16,489.44 × 8,217.36
  4. Step 4: Simplify right side
    11,003.76x = 135,499,664.68
  5. Step 5: Solve for x
    x = 135,499,664.68/11,003.76
  6. Step 6: Final answer
    x = 12,313.94

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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.