Home / 11,236.40-16,821.32-8,327.76

Finding the Fourth Proportional to 11,236.40, 16,821.32 and 8,327.76

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Solution

The fourth proportional to 11,236.40, 16,821.32 and 8,327.76 is: 12,466.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,236.40 : 16,821.32 = 8,327.76 : x
  2. Step 2: Convert to fraction form
    11,236.40/16,821.32 = 8,327.76/x
  3. Step 3: Cross multiply
    11,236.40x = 16,821.32 × 8,327.76
  4. Step 4: Simplify right side
    11,236.40x = 140,083,915.84
  5. Step 5: Solve for x
    x = 140,083,915.84/11,236.40
  6. Step 6: Final answer
    x = 12,466.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.