Home / 8,099.60-11,160.79-6,211.09

Finding the Fourth Proportional to 8,099.60, 11,160.79 and 6,211.09

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Solution

The fourth proportional to 8,099.60, 11,160.79 and 6,211.09 is: 8,558.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,099.60 : 11,160.79 = 6,211.09 : x
  2. Step 2: Convert to fraction form
    8,099.60/11,160.79 = 6,211.09/x
  3. Step 3: Cross multiply
    8,099.60x = 11,160.79 × 6,211.09
  4. Step 4: Simplify right side
    8,099.60x = 69,320,671.16
  5. Step 5: Solve for x
    x = 69,320,671.16/8,099.60
  6. Step 6: Final answer
    x = 8,558.53

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Half scale
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Double 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.