Home / 13,877.12-20,796.44-7,629.60

Finding the Fourth Proportional to 13,877.12, 20,796.44 and 7,629.60

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Solution

The fourth proportional to 13,877.12, 20,796.44 and 7,629.60 is: 11,433.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,877.12 : 20,796.44 = 7,629.60 : x
  2. Step 2: Convert to fraction form
    13,877.12/20,796.44 = 7,629.60/x
  3. Step 3: Cross multiply
    13,877.12x = 20,796.44 × 7,629.60
  4. Step 4: Simplify right side
    13,877.12x = 158,668,518.62
  5. Step 5: Solve for x
    x = 158,668,518.62/13,877.12
  6. Step 6: Final answer
    x = 11,433.82

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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.