Home / 6,623.67-9,920.39-3,163.35

Finding the Fourth Proportional to 6,623.67, 9,920.39 and 3,163.35

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Solution

The fourth proportional to 6,623.67, 9,920.39 and 3,163.35 is: 4,737.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,623.67 : 9,920.39 = 3,163.35 : x
  2. Step 2: Convert to fraction form
    6,623.67/9,920.39 = 3,163.35/x
  3. Step 3: Cross multiply
    6,623.67x = 9,920.39 × 3,163.35
  4. Step 4: Simplify right side
    6,623.67x = 31,381,649.89
  5. Step 5: Solve for x
    x = 31,381,649.89/6,623.67
  6. Step 6: Final answer
    x = 4,737.80

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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.