Home / 12,207.36-16,844.16-8,020.80

Finding the Fourth Proportional to 12,207.36, 16,844.16 and 8,020.80

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Solution

The fourth proportional to 12,207.36, 16,844.16 and 8,020.80 is: 11,067.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,207.36 : 16,844.16 = 8,020.80 : x
  2. Step 2: Convert to fraction form
    12,207.36/16,844.16 = 8,020.80/x
  3. Step 3: Cross multiply
    12,207.36x = 16,844.16 × 8,020.80
  4. Step 4: Simplify right side
    12,207.36x = 135,103,638.53
  5. Step 5: Solve for x
    x = 135,103,638.53/12,207.36
  6. Step 6: Final answer
    x = 11,067.39

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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.