Home / 11,316.44-16,974.78-3,419.02

Finding the Fourth Proportional to 11,316.44, 16,974.78 and 3,419.02

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Solution

The fourth proportional to 11,316.44, 16,974.78 and 3,419.02 is: 5,128.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,316.44 : 16,974.78 = 3,419.02 : x
  2. Step 2: Convert to fraction form
    11,316.44/16,974.78 = 3,419.02/x
  3. Step 3: Cross multiply
    11,316.44x = 16,974.78 × 3,419.02
  4. Step 4: Simplify right side
    11,316.44x = 58,037,027.44
  5. Step 5: Solve for x
    x = 58,037,027.44/11,316.44
  6. Step 6: Final answer
    x = 5,128.56

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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.