Home / 13,764.60-20,634.48-4,993.38

Finding the Fourth Proportional to 13,764.60, 20,634.48 and 4,993.38

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Solution

The fourth proportional to 13,764.60, 20,634.48 and 4,993.38 is: 7,485.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,764.60 : 20,634.48 = 4,993.38 : x
  2. Step 2: Convert to fraction form
    13,764.60/20,634.48 = 4,993.38/x
  3. Step 3: Cross multiply
    13,764.60x = 20,634.48 × 4,993.38
  4. Step 4: Simplify right side
    13,764.60x = 103,035,799.74
  5. Step 5: Solve for x
    x = 103,035,799.74/13,764.60
  6. Step 6: Final answer
    x = 7,485.56

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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.