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Finding the Fourth Proportional to 11,881.15, 16,395.62 and 6,845.38

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Solution

The fourth proportional to 11,881.15, 16,395.62 and 6,845.38 is: 9,446.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,881.15 : 16,395.62 = 6,845.38 : x
  2. Step 2: Convert to fraction form
    11,881.15/16,395.62 = 6,845.38/x
  3. Step 3: Cross multiply
    11,881.15x = 16,395.62 × 6,845.38
  4. Step 4: Simplify right side
    11,881.15x = 112,234,174.02
  5. Step 5: Solve for x
    x = 112,234,174.02/11,881.15
  6. Step 6: Final answer
    x = 9,446.41

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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.