Home / 12,222.90-16,843.41-8,676.18

Finding the Fourth Proportional to 12,222.90, 16,843.41 and 8,676.18

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Solution

The fourth proportional to 12,222.90, 16,843.41 and 8,676.18 is: 11,955.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,222.90 : 16,843.41 = 8,676.18 : x
  2. Step 2: Convert to fraction form
    12,222.90/16,843.41 = 8,676.18/x
  3. Step 3: Cross multiply
    12,222.90x = 16,843.41 × 8,676.18
  4. Step 4: Simplify right side
    12,222.90x = 146,136,456.97
  5. Step 5: Solve for x
    x = 146,136,456.97/12,222.90
  6. Step 6: Final answer
    x = 11,955.96

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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.