Home / 13,506.98-20,255.00-5,187.26

Finding the Fourth Proportional to 13,506.98, 20,255.00 and 5,187.26

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Solution

The fourth proportional to 13,506.98, 20,255.00 and 5,187.26 is: 7,778.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,506.98 : 20,255.00 = 5,187.26 : x
  2. Step 2: Convert to fraction form
    13,506.98/20,255.00 = 5,187.26/x
  3. Step 3: Cross multiply
    13,506.98x = 20,255.00 × 5,187.26
  4. Step 4: Simplify right side
    13,506.98x = 105,067,976.00
  5. Step 5: Solve for x
    x = 105,067,976.00/13,506.98
  6. Step 6: Final answer
    x = 7,778.79

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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.