Home / 12,087.36-18,127.74-3,320.22

Finding the Fourth Proportional to 12,087.36, 18,127.74 and 3,320.22

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Solution

The fourth proportional to 12,087.36, 18,127.74 and 3,320.22 is: 4,979.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,087.36 : 18,127.74 = 3,320.22 : x
  2. Step 2: Convert to fraction form
    12,087.36/18,127.74 = 3,320.22/x
  3. Step 3: Cross multiply
    12,087.36x = 18,127.74 × 3,320.22
  4. Step 4: Simplify right side
    12,087.36x = 60,188,084.90
  5. Step 5: Solve for x
    x = 60,188,084.90/12,087.36
  6. Step 6: Final answer
    x = 4,979.42

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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.