Home / 12,121.26-16,727.17-6,816.09

Finding the Fourth Proportional to 12,121.26, 16,727.17 and 6,816.09

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Solution

The fourth proportional to 12,121.26, 16,727.17 and 6,816.09 is: 9,406.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,121.26 : 16,727.17 = 6,816.09 : x
  2. Step 2: Convert to fraction form
    12,121.26/16,727.17 = 6,816.09/x
  3. Step 3: Cross multiply
    12,121.26x = 16,727.17 × 6,816.09
  4. Step 4: Simplify right side
    12,121.26x = 114,013,896.17
  5. Step 5: Solve for x
    x = 114,013,896.17/12,121.26
  6. Step 6: Final answer
    x = 9,406.11

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Half scale
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Double scale
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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.