Home / 11,915.31-17,869.49-4,514.43

Finding the Fourth Proportional to 11,915.31, 17,869.49 and 4,514.43

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Solution

The fourth proportional to 11,915.31, 17,869.49 and 4,514.43 is: 6,770.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,915.31 : 17,869.49 = 4,514.43 : x
  2. Step 2: Convert to fraction form
    11,915.31/17,869.49 = 4,514.43/x
  3. Step 3: Cross multiply
    11,915.31x = 17,869.49 × 4,514.43
  4. Step 4: Simplify right side
    11,915.31x = 80,670,539.17
  5. Step 5: Solve for x
    x = 80,670,539.17/11,915.31
  6. Step 6: Final answer
    x = 6,770.33

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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.