Home / 13,839.44-20,762.48-3,978.52

Finding the Fourth Proportional to 13,839.44, 20,762.48 and 3,978.52

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Solution

The fourth proportional to 13,839.44, 20,762.48 and 3,978.52 is: 5,968.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,839.44 : 20,762.48 = 3,978.52 : x
  2. Step 2: Convert to fraction form
    13,839.44/20,762.48 = 3,978.52/x
  3. Step 3: Cross multiply
    13,839.44x = 20,762.48 × 3,978.52
  4. Step 4: Simplify right side
    13,839.44x = 82,603,941.93
  5. Step 5: Solve for x
    x = 82,603,941.93/13,839.44
  6. Step 6: Final answer
    x = 5,968.73

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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.