Home / 12,076.38-18,116.12-4,285.26

Finding the Fourth Proportional to 12,076.38, 18,116.12 and 4,285.26

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Solution

The fourth proportional to 12,076.38, 18,116.12 and 4,285.26 is: 6,428.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,076.38 : 18,116.12 = 4,285.26 : x
  2. Step 2: Convert to fraction form
    12,076.38/18,116.12 = 4,285.26/x
  3. Step 3: Cross multiply
    12,076.38x = 18,116.12 × 4,285.26
  4. Step 4: Simplify right side
    12,076.38x = 77,632,172.38
  5. Step 5: Solve for x
    x = 77,632,172.38/12,076.38
  6. Step 6: Final answer
    x = 6,428.43

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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.