Home / 15,481.08-21,367.26-9,517.86

Finding the Fourth Proportional to 15,481.08, 21,367.26 and 9,517.86

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Solution

The fourth proportional to 15,481.08, 21,367.26 and 9,517.86 is: 13,136.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,481.08 : 21,367.26 = 9,517.86 : x
  2. Step 2: Convert to fraction form
    15,481.08/21,367.26 = 9,517.86/x
  3. Step 3: Cross multiply
    15,481.08x = 21,367.26 × 9,517.86
  4. Step 4: Simplify right side
    15,481.08x = 203,370,589.26
  5. Step 5: Solve for x
    x = 203,370,589.26/15,481.08
  6. Step 6: Final answer
    x = 13,136.72

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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.