Home / 14,234.67-21,351.72-4,747.68

Finding the Fourth Proportional to 14,234.67, 21,351.72 and 4,747.68

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Solution

The fourth proportional to 14,234.67, 21,351.72 and 4,747.68 is: 7,121.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,234.67 : 21,351.72 = 4,747.68 : x
  2. Step 2: Convert to fraction form
    14,234.67/21,351.72 = 4,747.68/x
  3. Step 3: Cross multiply
    14,234.67x = 21,351.72 × 4,747.68
  4. Step 4: Simplify right side
    14,234.67x = 101,371,134.01
  5. Step 5: Solve for x
    x = 101,371,134.01/14,234.67
  6. Step 6: Final answer
    x = 7,121.42

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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.