Home / 11,765.60-16,236.56-6,460.76

Finding the Fourth Proportional to 11,765.60, 16,236.56 and 6,460.76

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Solution

The fourth proportional to 11,765.60, 16,236.56 and 6,460.76 is: 8,915.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,765.60 : 16,236.56 = 6,460.76 : x
  2. Step 2: Convert to fraction form
    11,765.60/16,236.56 = 6,460.76/x
  3. Step 3: Cross multiply
    11,765.60x = 16,236.56 × 6,460.76
  4. Step 4: Simplify right side
    11,765.60x = 104,900,517.39
  5. Step 5: Solve for x
    x = 104,900,517.39/11,765.60
  6. Step 6: Final answer
    x = 8,915.87

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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.