Home / 12,190.06-16,817.18-8,204.25

Finding the Fourth Proportional to 12,190.06, 16,817.18 and 8,204.25

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Solution

The fourth proportional to 12,190.06, 16,817.18 and 8,204.25 is: 11,318.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,190.06 : 16,817.18 = 8,204.25 : x
  2. Step 2: Convert to fraction form
    12,190.06/16,817.18 = 8,204.25/x
  3. Step 3: Cross multiply
    12,190.06x = 16,817.18 × 8,204.25
  4. Step 4: Simplify right side
    12,190.06x = 137,972,349.02
  5. Step 5: Solve for x
    x = 137,972,349.02/12,190.06
  6. Step 6: Final answer
    x = 11,318.43

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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.