Home / 13,840.73-20,764.40-4,480.75

Finding the Fourth Proportional to 13,840.73, 20,764.40 and 4,480.75

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Solution

The fourth proportional to 13,840.73, 20,764.40 and 4,480.75 is: 6,722.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,840.73 : 20,764.40 = 4,480.75 : x
  2. Step 2: Convert to fraction form
    13,840.73/20,764.40 = 4,480.75/x
  3. Step 3: Cross multiply
    13,840.73x = 20,764.40 × 4,480.75
  4. Step 4: Simplify right side
    13,840.73x = 93,040,062.90
  5. Step 5: Solve for x
    x = 93,040,062.90/13,840.73
  6. Step 6: Final answer
    x = 6,722.19

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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.