Home / 11,892.41-16,418.24-8,121.05

Finding the Fourth Proportional to 11,892.41, 16,418.24 and 8,121.05

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Solution

The fourth proportional to 11,892.41, 16,418.24 and 8,121.05 is: 11,211.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,892.41 : 16,418.24 = 8,121.05 : x
  2. Step 2: Convert to fraction form
    11,892.41/16,418.24 = 8,121.05/x
  3. Step 3: Cross multiply
    11,892.41x = 16,418.24 × 8,121.05
  4. Step 4: Simplify right side
    11,892.41x = 133,333,225.26
  5. Step 5: Solve for x
    x = 133,333,225.26/11,892.41
  6. Step 6: Final answer
    x = 11,211.63

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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.