Home / 11,938.25-17,915.15-4,542.77

Finding the Fourth Proportional to 11,938.25, 17,915.15 and 4,542.77

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Solution

The fourth proportional to 11,938.25, 17,915.15 and 4,542.77 is: 6,817.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,938.25 : 17,915.15 = 4,542.77 : x
  2. Step 2: Convert to fraction form
    11,938.25/17,915.15 = 4,542.77/x
  3. Step 3: Cross multiply
    11,938.25x = 17,915.15 × 4,542.77
  4. Step 4: Simplify right side
    11,938.25x = 81,384,293.68
  5. Step 5: Solve for x
    x = 81,384,293.68/11,938.25
  6. Step 6: Final answer
    x = 6,817.11

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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.