Home / 11,942.24-16,480.20-6,636.96

Finding the Fourth Proportional to 11,942.24, 16,480.20 and 6,636.96

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Solution

The fourth proportional to 11,942.24, 16,480.20 and 6,636.96 is: 9,158.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,942.24 : 16,480.20 = 6,636.96 : x
  2. Step 2: Convert to fraction form
    11,942.24/16,480.20 = 6,636.96/x
  3. Step 3: Cross multiply
    11,942.24x = 16,480.20 × 6,636.96
  4. Step 4: Simplify right side
    11,942.24x = 109,378,428.19
  5. Step 5: Solve for x
    x = 109,378,428.19/11,942.24
  6. Step 6: Final answer
    x = 9,158.95

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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.