Home / 9,999.24-13,783.78-8,227.80

Finding the Fourth Proportional to 9,999.24, 13,783.78 and 8,227.80

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Solution

The fourth proportional to 9,999.24, 13,783.78 and 8,227.80 is: 11,341.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,999.24 : 13,783.78 = 8,227.80 : x
  2. Step 2: Convert to fraction form
    9,999.24/13,783.78 = 8,227.80/x
  3. Step 3: Cross multiply
    9,999.24x = 13,783.78 × 8,227.80
  4. Step 4: Simplify right side
    9,999.24x = 113,410,185.08
  5. Step 5: Solve for x
    x = 113,410,185.08/9,999.24
  6. Step 6: Final answer
    x = 11,341.88

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.