Home / 11,255.76-16,865.19-3,856.23

Finding the Fourth Proportional to 11,255.76, 16,865.19 and 3,856.23

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Solution

The fourth proportional to 11,255.76, 16,865.19 and 3,856.23 is: 5,778.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,255.76 : 16,865.19 = 3,856.23 : x
  2. Step 2: Convert to fraction form
    11,255.76/16,865.19 = 3,856.23/x
  3. Step 3: Cross multiply
    11,255.76x = 16,865.19 × 3,856.23
  4. Step 4: Simplify right side
    11,255.76x = 65,036,051.63
  5. Step 5: Solve for x
    x = 65,036,051.63/11,255.76
  6. Step 6: Final answer
    x = 5,778.02

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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.