Home / 13,304.93-19,961.30-3,945.20

Finding the Fourth Proportional to 13,304.93, 19,961.30 and 3,945.20

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Solution

The fourth proportional to 13,304.93, 19,961.30 and 3,945.20 is: 5,918.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,304.93 : 19,961.30 = 3,945.20 : x
  2. Step 2: Convert to fraction form
    13,304.93/19,961.30 = 3,945.20/x
  3. Step 3: Cross multiply
    13,304.93x = 19,961.30 × 3,945.20
  4. Step 4: Simplify right side
    13,304.93x = 78,751,201.23
  5. Step 5: Solve for x
    x = 78,751,201.23/13,304.93
  6. Step 6: Final answer
    x = 5,918.95

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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.