Home / 18,912.58-28,373.07-5,765.95

Finding the Fourth Proportional to 18,912.58, 28,373.07 and 5,765.95

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Solution

The fourth proportional to 18,912.58, 28,373.07 and 5,765.95 is: 8,650.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,912.58 : 28,373.07 = 5,765.95 : x
  2. Step 2: Convert to fraction form
    18,912.58/28,373.07 = 5,765.95/x
  3. Step 3: Cross multiply
    18,912.58x = 28,373.07 × 5,765.95
  4. Step 4: Simplify right side
    18,912.58x = 163,597,702.97
  5. Step 5: Solve for x
    x = 163,597,702.97/18,912.58
  6. Step 6: Final answer
    x = 8,650.21

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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.