Home / 7,961.50-11,942.25-3,097.50

Finding the Fourth Proportional to 7,961.50, 11,942.25 and 3,097.50

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Solution

The fourth proportional to 7,961.50, 11,942.25 and 3,097.50 is: 4,646.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.50 : 11,942.25 = 3,097.50 : x
  2. Step 2: Convert to fraction form
    7,961.50/11,942.25 = 3,097.50/x
  3. Step 3: Cross multiply
    7,961.50x = 11,942.25 × 3,097.50
  4. Step 4: Simplify right side
    7,961.50x = 36,991,119.38
  5. Step 5: Solve for x
    x = 36,991,119.38/7,961.50
  6. Step 6: Final answer
    x = 4,646.25

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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.