Home / 15,855.32-21,884.27-9,144.97

Finding the Fourth Proportional to 15,855.32, 21,884.27 and 9,144.97

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Solution

The fourth proportional to 15,855.32, 21,884.27 and 9,144.97 is: 12,622.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,855.32 : 21,884.27 = 9,144.97 : x
  2. Step 2: Convert to fraction form
    15,855.32/21,884.27 = 9,144.97/x
  3. Step 3: Cross multiply
    15,855.32x = 21,884.27 × 9,144.97
  4. Step 4: Simplify right side
    15,855.32x = 200,131,066.73
  5. Step 5: Solve for x
    x = 200,131,066.73/15,855.32
  6. Step 6: Final answer
    x = 12,622.33

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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.