Home / 13,986.52-20,976.90-6,190.36

Finding the Fourth Proportional to 13,986.52, 20,976.90 and 6,190.36

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Solution

The fourth proportional to 13,986.52, 20,976.90 and 6,190.36 is: 9,284.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,986.52 : 20,976.90 = 6,190.36 : x
  2. Step 2: Convert to fraction form
    13,986.52/20,976.90 = 6,190.36/x
  3. Step 3: Cross multiply
    13,986.52x = 20,976.90 × 6,190.36
  4. Step 4: Simplify right side
    13,986.52x = 129,854,562.68
  5. Step 5: Solve for x
    x = 129,854,562.68/13,986.52
  6. Step 6: Final answer
    x = 9,284.27

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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.