Home / 13,690.44-20,539.14-3,829.77

Finding the Fourth Proportional to 13,690.44, 20,539.14 and 3,829.77

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Solution

The fourth proportional to 13,690.44, 20,539.14 and 3,829.77 is: 5,745.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,690.44 : 20,539.14 = 3,829.77 : x
  2. Step 2: Convert to fraction form
    13,690.44/20,539.14 = 3,829.77/x
  3. Step 3: Cross multiply
    13,690.44x = 20,539.14 × 3,829.77
  4. Step 4: Simplify right side
    13,690.44x = 78,660,182.20
  5. Step 5: Solve for x
    x = 78,660,182.20/13,690.44
  6. Step 6: Final answer
    x = 5,745.63

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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.