Home / 11,321.22-16,984.78-4,301.36

Finding the Fourth Proportional to 11,321.22, 16,984.78 and 4,301.36

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Solution

The fourth proportional to 11,321.22, 16,984.78 and 4,301.36 is: 6,453.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,321.22 : 16,984.78 = 4,301.36 : x
  2. Step 2: Convert to fraction form
    11,321.22/16,984.78 = 4,301.36/x
  3. Step 3: Cross multiply
    11,321.22x = 16,984.78 × 4,301.36
  4. Step 4: Simplify right side
    11,321.22x = 73,057,653.30
  5. Step 5: Solve for x
    x = 73,057,653.30/11,321.22
  6. Step 6: Final answer
    x = 6,453.16

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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.