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Finding the Fourth Proportional to 8,236.98, 12,355.43 and 1,996.99

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Solution

The fourth proportional to 8,236.98, 12,355.43 and 1,996.99 is: 2,995.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,236.98 : 12,355.43 = 1,996.99 : x
  2. Step 2: Convert to fraction form
    8,236.98/12,355.43 = 1,996.99/x
  3. Step 3: Cross multiply
    8,236.98x = 12,355.43 × 1,996.99
  4. Step 4: Simplify right side
    8,236.98x = 24,673,629.28
  5. Step 5: Solve for x
    x = 24,673,629.28/8,236.98
  6. Step 6: Final answer
    x = 2,995.47

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.