Home / 11,229.41-16,836.60-7,900.38

Finding the Fourth Proportional to 11,229.41, 16,836.60 and 7,900.38

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Solution

The fourth proportional to 11,229.41, 16,836.60 and 7,900.38 is: 11,845.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,229.41 : 16,836.60 = 7,900.38 : x
  2. Step 2: Convert to fraction form
    11,229.41/16,836.60 = 7,900.38/x
  3. Step 3: Cross multiply
    11,229.41x = 16,836.60 × 7,900.38
  4. Step 4: Simplify right side
    11,229.41x = 133,015,537.91
  5. Step 5: Solve for x
    x = 133,015,537.91/11,229.41
  6. Step 6: Final answer
    x = 11,845.29

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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.