Home / 14,504.20-20,016.84-8,131.36

Finding the Fourth Proportional to 14,504.20, 20,016.84 and 8,131.36

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Solution

The fourth proportional to 14,504.20, 20,016.84 and 8,131.36 is: 11,221.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,504.20 : 20,016.84 = 8,131.36 : x
  2. Step 2: Convert to fraction form
    14,504.20/20,016.84 = 8,131.36/x
  3. Step 3: Cross multiply
    14,504.20x = 20,016.84 × 8,131.36
  4. Step 4: Simplify right side
    14,504.20x = 162,764,132.10
  5. Step 5: Solve for x
    x = 162,764,132.10/14,504.20
  6. Step 6: Final answer
    x = 11,221.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.