Home / 18,721.22-28,072.44-6,236.85

Finding the Fourth Proportional to 18,721.22, 28,072.44 and 6,236.85

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Solution

The fourth proportional to 18,721.22, 28,072.44 and 6,236.85 is: 9,352.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721.22 : 28,072.44 = 6,236.85 : x
  2. Step 2: Convert to fraction form
    18,721.22/28,072.44 = 6,236.85/x
  3. Step 3: Cross multiply
    18,721.22x = 28,072.44 × 6,236.85
  4. Step 4: Simplify right side
    18,721.22x = 175,083,597.41
  5. Step 5: Solve for x
    x = 175,083,597.41/18,721.22
  6. Step 6: Final answer
    x = 9,352.15

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1.5x scale

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.