Home / 15,910.97-21,958.13-8,837.38

Finding the Fourth Proportional to 15,910.97, 21,958.13 and 8,837.38

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Solution

The fourth proportional to 15,910.97, 21,958.13 and 8,837.38 is: 12,196.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,910.97 : 21,958.13 = 8,837.38 : x
  2. Step 2: Convert to fraction form
    15,910.97/21,958.13 = 8,837.38/x
  3. Step 3: Cross multiply
    15,910.97x = 21,958.13 × 8,837.38
  4. Step 4: Simplify right side
    15,910.97x = 194,052,338.90
  5. Step 5: Solve for x
    x = 194,052,338.90/15,910.97
  6. Step 6: Final answer
    x = 12,196.14

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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.