Home / 15,850.11-21,876.57-10,189.43

Finding the Fourth Proportional to 15,850.11, 21,876.57 and 10,189.43

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Solution

The fourth proportional to 15,850.11, 21,876.57 and 10,189.43 is: 14,063.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,850.11 : 21,876.57 = 10,189.43 : x
  2. Step 2: Convert to fraction form
    15,850.11/21,876.57 = 10,189.43/x
  3. Step 3: Cross multiply
    15,850.11x = 21,876.57 × 10,189.43
  4. Step 4: Simplify right side
    15,850.11x = 222,909,778.66
  5. Step 5: Solve for x
    x = 222,909,778.66/15,850.11
  6. Step 6: Final answer
    x = 14,063.61

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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.