Home / 16,391.52-22,620.27-9,221.44

Finding the Fourth Proportional to 16,391.52, 22,620.27 and 9,221.44

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Solution

The fourth proportional to 16,391.52, 22,620.27 and 9,221.44 is: 12,725.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,391.52 : 22,620.27 = 9,221.44 : x
  2. Step 2: Convert to fraction form
    16,391.52/22,620.27 = 9,221.44/x
  3. Step 3: Cross multiply
    16,391.52x = 22,620.27 × 9,221.44
  4. Step 4: Simplify right side
    16,391.52x = 208,591,456.28
  5. Step 5: Solve for x
    x = 208,591,456.28/16,391.52
  6. Step 6: Final answer
    x = 12,725.57

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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.