Home / 13,177.30-19,727.19-8,231.95

Finding the Fourth Proportional to 13,177.30, 19,727.19 and 8,231.95

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Solution

The fourth proportional to 13,177.30, 19,727.19 and 8,231.95 is: 12,323.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,177.30 : 19,727.19 = 8,231.95 : x
  2. Step 2: Convert to fraction form
    13,177.30/19,727.19 = 8,231.95/x
  3. Step 3: Cross multiply
    13,177.30x = 19,727.19 × 8,231.95
  4. Step 4: Simplify right side
    13,177.30x = 162,393,241.72
  5. Step 5: Solve for x
    x = 162,393,241.72/13,177.30
  6. Step 6: Final answer
    x = 12,323.71

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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.