Home / 11,221.94-15,400.90-10,327.70

Finding the Fourth Proportional to 11,221.94, 15,400.90 and 10,327.70

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Solution

The fourth proportional to 11,221.94, 15,400.90 and 10,327.70 is: 14,173.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,221.94 : 15,400.90 = 10,327.70 : x
  2. Step 2: Convert to fraction form
    11,221.94/15,400.90 = 10,327.70/x
  3. Step 3: Cross multiply
    11,221.94x = 15,400.90 × 10,327.70
  4. Step 4: Simplify right side
    11,221.94x = 159,055,874.93
  5. Step 5: Solve for x
    x = 159,055,874.93/11,221.94
  6. Step 6: Final answer
    x = 14,173.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.