Home / 11,974.08-17,955.36-6,778.56

Finding the Fourth Proportional to 11,974.08, 17,955.36 and 6,778.56

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Solution

The fourth proportional to 11,974.08, 17,955.36 and 6,778.56 is: 10,164.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,974.08 : 17,955.36 = 6,778.56 : x
  2. Step 2: Convert to fraction form
    11,974.08/17,955.36 = 6,778.56/x
  3. Step 3: Cross multiply
    11,974.08x = 17,955.36 × 6,778.56
  4. Step 4: Simplify right side
    11,974.08x = 121,711,485.08
  5. Step 5: Solve for x
    x = 121,711,485.08/11,974.08
  6. Step 6: Final answer
    x = 10,164.58

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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.