Home / 12,122.66-16,727.32-6,817.16

Finding the Fourth Proportional to 12,122.66, 16,727.32 and 6,817.16

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Solution

The fourth proportional to 12,122.66, 16,727.32 and 6,817.16 is: 9,406.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,122.66 : 16,727.32 = 6,817.16 : x
  2. Step 2: Convert to fraction form
    12,122.66/16,727.32 = 6,817.16/x
  3. Step 3: Cross multiply
    12,122.66x = 16,727.32 × 6,817.16
  4. Step 4: Simplify right side
    12,122.66x = 114,032,841.59
  5. Step 5: Solve for x
    x = 114,032,841.59/12,122.66
  6. Step 6: Final answer
    x = 9,406.58

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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.