Home / 12,226.09-16,872.03-6,637.09

Finding the Fourth Proportional to 12,226.09, 16,872.03 and 6,637.09

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Solution

The fourth proportional to 12,226.09, 16,872.03 and 6,637.09 is: 9,159.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,226.09 : 16,872.03 = 6,637.09 : x
  2. Step 2: Convert to fraction form
    12,226.09/16,872.03 = 6,637.09/x
  3. Step 3: Cross multiply
    12,226.09x = 16,872.03 × 6,637.09
  4. Step 4: Simplify right side
    12,226.09x = 111,981,181.59
  5. Step 5: Solve for x
    x = 111,981,181.59/12,226.09
  6. Step 6: Final answer
    x = 9,159.20

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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.