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Finding the Fourth Proportional to 11,131, 15,361.26 and 6,163

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Solution

The fourth proportional to 11,131, 15,361.26 and 6,163 is: 8,505.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,131 : 15,361.26 = 6,163 : x
  2. Step 2: Convert to fraction form
    11,131/15,361.26 = 6,163/x
  3. Step 3: Cross multiply
    11,131x = 15,361.26 × 6,163
  4. Step 4: Simplify right side
    11,131x = 94,671,445.38
  5. Step 5: Solve for x
    x = 94,671,445.38/11,131
  6. Step 6: Final answer
    x = 8,505.21

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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.