Home / 12,102.82-18,141.99-4,702.66

Finding the Fourth Proportional to 12,102.82, 18,141.99 and 4,702.66

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Solution

The fourth proportional to 12,102.82, 18,141.99 and 4,702.66 is: 7,049.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,102.82 : 18,141.99 = 4,702.66 : x
  2. Step 2: Convert to fraction form
    12,102.82/18,141.99 = 4,702.66/x
  3. Step 3: Cross multiply
    12,102.82x = 18,141.99 × 4,702.66
  4. Step 4: Simplify right side
    12,102.82x = 85,315,610.69
  5. Step 5: Solve for x
    x = 85,315,610.69/12,102.82
  6. Step 6: Final answer
    x = 7,049.23

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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.