Home / 12,226.62-16,872.60-6,921.39

Finding the Fourth Proportional to 12,226.62, 16,872.60 and 6,921.39

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Solution

The fourth proportional to 12,226.62, 16,872.60 and 6,921.39 is: 9,551.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,226.62 : 16,872.60 = 6,921.39 : x
  2. Step 2: Convert to fraction form
    12,226.62/16,872.60 = 6,921.39/x
  3. Step 3: Cross multiply
    12,226.62x = 16,872.60 × 6,921.39
  4. Step 4: Simplify right side
    12,226.62x = 116,781,844.91
  5. Step 5: Solve for x
    x = 116,781,844.91/12,226.62
  6. Step 6: Final answer
    x = 9,551.44

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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.