Home / 8,211.26-12,318.83-2,664.60

Finding the Fourth Proportional to 8,211.26, 12,318.83 and 2,664.60

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Solution

The fourth proportional to 8,211.26, 12,318.83 and 2,664.60 is: 3,997.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,211.26 : 12,318.83 = 2,664.60 : x
  2. Step 2: Convert to fraction form
    8,211.26/12,318.83 = 2,664.60/x
  3. Step 3: Cross multiply
    8,211.26x = 12,318.83 × 2,664.60
  4. Step 4: Simplify right side
    8,211.26x = 32,824,741.10
  5. Step 5: Solve for x
    x = 32,824,741.10/8,211.26
  6. Step 6: Final answer
    x = 3,997.53

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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.