Home / 8,216.73-12,319.70-2,949.09

Finding the Fourth Proportional to 8,216.73, 12,319.70 and 2,949.09

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Solution

The fourth proportional to 8,216.73, 12,319.70 and 2,949.09 is: 4,421.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,216.73 : 12,319.70 = 2,949.09 : x
  2. Step 2: Convert to fraction form
    8,216.73/12,319.70 = 2,949.09/x
  3. Step 3: Cross multiply
    8,216.73x = 12,319.70 × 2,949.09
  4. Step 4: Simplify right side
    8,216.73x = 36,331,889.33
  5. Step 5: Solve for x
    x = 36,331,889.33/8,216.73
  6. Step 6: Final answer
    x = 4,421.70

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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.