Home / 8,231.56-11,336.75-7,112.14

Finding the Fourth Proportional to 8,231.56, 11,336.75 and 7,112.14

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Solution

The fourth proportional to 8,231.56, 11,336.75 and 7,112.14 is: 9,795.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,231.56 : 11,336.75 = 7,112.14 : x
  2. Step 2: Convert to fraction form
    8,231.56/11,336.75 = 7,112.14/x
  3. Step 3: Cross multiply
    8,231.56x = 11,336.75 × 7,112.14
  4. Step 4: Simplify right side
    8,231.56x = 80,628,553.15
  5. Step 5: Solve for x
    x = 80,628,553.15/8,231.56
  6. Step 6: Final answer
    x = 9,795.05

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Half 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.