Home / 11,236.80-16,826.40-8,299.20

Finding the Fourth Proportional to 11,236.80, 16,826.40 and 8,299.20

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Solution

The fourth proportional to 11,236.80, 16,826.40 and 8,299.20 is: 12,427.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,236.80 : 16,826.40 = 8,299.20 : x
  2. Step 2: Convert to fraction form
    11,236.80/16,826.40 = 8,299.20/x
  3. Step 3: Cross multiply
    11,236.80x = 16,826.40 × 8,299.20
  4. Step 4: Simplify right side
    11,236.80x = 139,645,658.88
  5. Step 5: Solve for x
    x = 139,645,658.88/11,236.80
  6. Step 6: Final answer
    x = 12,427.53

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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.