Home / 13,739.49-20,606.49-8,119.26

Finding the Fourth Proportional to 13,739.49, 20,606.49 and 8,119.26

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Solution

The fourth proportional to 13,739.49, 20,606.49 and 8,119.26 is: 12,177.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,739.49 : 20,606.49 = 8,119.26 : x
  2. Step 2: Convert to fraction form
    13,739.49/20,606.49 = 8,119.26/x
  3. Step 3: Cross multiply
    13,739.49x = 20,606.49 × 8,119.26
  4. Step 4: Simplify right side
    13,739.49x = 167,309,450.00
  5. Step 5: Solve for x
    x = 167,309,450.00/13,739.49
  6. Step 6: Final answer
    x = 12,177.27

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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.