Home / 18,721.03-28,072.16-6,236.67

Finding the Fourth Proportional to 18,721.03, 28,072.16 and 6,236.67

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Solution

The fourth proportional to 18,721.03, 28,072.16 and 6,236.67 is: 9,351.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721.03 : 28,072.16 = 6,236.67 : x
  2. Step 2: Convert to fraction form
    18,721.03/28,072.16 = 6,236.67/x
  3. Step 3: Cross multiply
    18,721.03x = 28,072.16 × 6,236.67
  4. Step 4: Simplify right side
    18,721.03x = 175,076,626.56
  5. Step 5: Solve for x
    x = 175,076,626.56/18,721.03
  6. Step 6: Final answer
    x = 9,351.87

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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.