Home / 12,214.45-18,322.31-3,450.05

Finding the Fourth Proportional to 12,214.45, 18,322.31 and 3,450.05

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Solution

The fourth proportional to 12,214.45, 18,322.31 and 3,450.05 is: 5,175.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,214.45 : 18,322.31 = 3,450.05 : x
  2. Step 2: Convert to fraction form
    12,214.45/18,322.31 = 3,450.05/x
  3. Step 3: Cross multiply
    12,214.45x = 18,322.31 × 3,450.05
  4. Step 4: Simplify right side
    12,214.45x = 63,212,794.00
  5. Step 5: Solve for x
    x = 63,212,794.00/12,214.45
  6. Step 6: Final answer
    x = 5,175.25

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.