Home / 7,997.12-11,995.70-4,099.40

Finding the Fourth Proportional to 7,997.12, 11,995.70 and 4,099.40

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Solution

The fourth proportional to 7,997.12, 11,995.70 and 4,099.40 is: 6,149.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,997.12 : 11,995.70 = 4,099.40 : x
  2. Step 2: Convert to fraction form
    7,997.12/11,995.70 = 4,099.40/x
  3. Step 3: Cross multiply
    7,997.12x = 11,995.70 × 4,099.40
  4. Step 4: Simplify right side
    7,997.12x = 49,175,172.58
  5. Step 5: Solve for x
    x = 49,175,172.58/7,997.12
  6. Step 6: Final answer
    x = 6,149.11

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Half 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.