Home / 11,105.64-16,659.56-3,208.34

Finding the Fourth Proportional to 11,105.64, 16,659.56 and 3,208.34

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Solution

The fourth proportional to 11,105.64, 16,659.56 and 3,208.34 is: 4,812.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,105.64 : 16,659.56 = 3,208.34 : x
  2. Step 2: Convert to fraction form
    11,105.64/16,659.56 = 3,208.34/x
  3. Step 3: Cross multiply
    11,105.64x = 16,659.56 × 3,208.34
  4. Step 4: Simplify right side
    11,105.64x = 53,449,564.35
  5. Step 5: Solve for x
    x = 53,449,564.35/11,105.64
  6. Step 6: Final answer
    x = 4,812.83

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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.