Home / 13,212-19,817.99-3,351.26

Finding the Fourth Proportional to 13,212, 19,817.99 and 3,351.26

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Solution

The fourth proportional to 13,212, 19,817.99 and 3,351.26 is: 5,026.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212 : 19,817.99 = 3,351.26 : x
  2. Step 2: Convert to fraction form
    13,212/19,817.99 = 3,351.26/x
  3. Step 3: Cross multiply
    13,212x = 19,817.99 × 3,351.26
  4. Step 4: Simplify right side
    13,212x = 66,415,121.32
  5. Step 5: Solve for x
    x = 66,415,121.32/13,212
  6. Step 6: Final answer
    x = 5,026.88

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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.