Home / 10,481.86-15,723.18-3,086.32

Finding the Fourth Proportional to 10,481.86, 15,723.18 and 3,086.32

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Solution

The fourth proportional to 10,481.86, 15,723.18 and 3,086.32 is: 4,629.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,481.86 : 15,723.18 = 3,086.32 : x
  2. Step 2: Convert to fraction form
    10,481.86/15,723.18 = 3,086.32/x
  3. Step 3: Cross multiply
    10,481.86x = 15,723.18 × 3,086.32
  4. Step 4: Simplify right side
    10,481.86x = 48,526,764.90
  5. Step 5: Solve for x
    x = 48,526,764.90/10,481.86
  6. Step 6: Final answer
    x = 4,629.59

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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.