Home / 12,207.67-16,822.96-8,664.73

Finding the Fourth Proportional to 12,207.67, 16,822.96 and 8,664.73

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Solution

The fourth proportional to 12,207.67, 16,822.96 and 8,664.73 is: 11,940.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,207.67 : 16,822.96 = 8,664.73 : x
  2. Step 2: Convert to fraction form
    12,207.67/16,822.96 = 8,664.73/x
  3. Step 3: Cross multiply
    12,207.67x = 16,822.96 × 8,664.73
  4. Step 4: Simplify right side
    12,207.67x = 145,766,406.20
  5. Step 5: Solve for x
    x = 145,766,406.20/12,207.67
  6. Step 6: Final answer
    x = 11,940.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.