Home / 8,131.56-11,220.93-4,546.50

Finding the Fourth Proportional to 8,131.56, 11,220.93 and 4,546.50

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Solution

The fourth proportional to 8,131.56, 11,220.93 and 4,546.50 is: 6,273.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,131.56 : 11,220.93 = 4,546.50 : x
  2. Step 2: Convert to fraction form
    8,131.56/11,220.93 = 4,546.50/x
  3. Step 3: Cross multiply
    8,131.56x = 11,220.93 × 4,546.50
  4. Step 4: Simplify right side
    8,131.56x = 51,015,958.25
  5. Step 5: Solve for x
    x = 51,015,958.25/8,131.56
  6. Step 6: Final answer
    x = 6,273.82

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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.