Home / 12,192.36-18,289.25-3,427.96

Finding the Fourth Proportional to 12,192.36, 18,289.25 and 3,427.96

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Solution

The fourth proportional to 12,192.36, 18,289.25 and 3,427.96 is: 5,142.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,192.36 : 18,289.25 = 3,427.96 : x
  2. Step 2: Convert to fraction form
    12,192.36/18,289.25 = 3,427.96/x
  3. Step 3: Cross multiply
    12,192.36x = 18,289.25 × 3,427.96
  4. Step 4: Simplify right side
    12,192.36x = 62,694,817.43
  5. Step 5: Solve for x
    x = 62,694,817.43/12,192.36
  6. Step 6: Final answer
    x = 5,142.14

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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.