Home / 8,236.32-12,355.92-5,317.44

Finding the Fourth Proportional to 8,236.32, 12,355.92 and 5,317.44

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Solution

The fourth proportional to 8,236.32, 12,355.92 and 5,317.44 is: 7,977.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,236.32 : 12,355.92 = 5,317.44 : x
  2. Step 2: Convert to fraction form
    8,236.32/12,355.92 = 5,317.44/x
  3. Step 3: Cross multiply
    8,236.32x = 12,355.92 × 5,317.44
  4. Step 4: Simplify right side
    8,236.32x = 65,701,863.24
  5. Step 5: Solve for x
    x = 65,701,863.24/8,236.32
  6. Step 6: Final answer
    x = 7,977.09

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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.