Home / 11,891.34-17,821.62-10,236.78

Finding the Fourth Proportional to 11,891.34, 17,821.62 and 10,236.78

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Solution

The fourth proportional to 11,891.34, 17,821.62 and 10,236.78 is: 15,341.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,891.34 : 17,821.62 = 10,236.78 : x
  2. Step 2: Convert to fraction form
    11,891.34/17,821.62 = 10,236.78/x
  3. Step 3: Cross multiply
    11,891.34x = 17,821.62 × 10,236.78
  4. Step 4: Simplify right side
    11,891.34x = 182,436,003.18
  5. Step 5: Solve for x
    x = 182,436,003.18/11,891.34
  6. Step 6: Final answer
    x = 15,341.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.