Home / 13,203.12-19,805.31-3,342.48

Finding the Fourth Proportional to 13,203.12, 19,805.31 and 3,342.48

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Solution

The fourth proportional to 13,203.12, 19,805.31 and 3,342.48 is: 5,013.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,203.12 : 19,805.31 = 3,342.48 : x
  2. Step 2: Convert to fraction form
    13,203.12/19,805.31 = 3,342.48/x
  3. Step 3: Cross multiply
    13,203.12x = 19,805.31 × 3,342.48
  4. Step 4: Simplify right side
    13,203.12x = 66,198,852.57
  5. Step 5: Solve for x
    x = 66,198,852.57/13,203.12
  6. Step 6: Final answer
    x = 5,013.88

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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.