Home / 11,949.62-16,490.38-6,644.39

Finding the Fourth Proportional to 11,949.62, 16,490.38 and 6,644.39

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Solution

The fourth proportional to 11,949.62, 16,490.38 and 6,644.39 is: 9,169.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,949.62 : 16,490.38 = 6,644.39 : x
  2. Step 2: Convert to fraction form
    11,949.62/16,490.38 = 6,644.39/x
  3. Step 3: Cross multiply
    11,949.62x = 16,490.38 × 6,644.39
  4. Step 4: Simplify right side
    11,949.62x = 109,568,503.36
  5. Step 5: Solve for x
    x = 109,568,503.36/11,949.62
  6. Step 6: Final answer
    x = 9,169.20

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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.