Home / 11,911.66-17,867.39-6,654.56

Finding the Fourth Proportional to 11,911.66, 17,867.39 and 6,654.56

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Solution

The fourth proportional to 11,911.66, 17,867.39 and 6,654.56 is: 9,981.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,911.66 : 17,867.39 = 6,654.56 : x
  2. Step 2: Convert to fraction form
    11,911.66/17,867.39 = 6,654.56/x
  3. Step 3: Cross multiply
    11,911.66x = 17,867.39 × 6,654.56
  4. Step 4: Simplify right side
    11,911.66x = 118,899,496.19
  5. Step 5: Solve for x
    x = 118,899,496.19/11,911.66
  6. Step 6: Final answer
    x = 9,981.78

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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.