Home / 8,208.67-12,307.98-3,821.92

Finding the Fourth Proportional to 8,208.67, 12,307.98 and 3,821.92

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Solution

The fourth proportional to 8,208.67, 12,307.98 and 3,821.92 is: 5,730.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,208.67 : 12,307.98 = 3,821.92 : x
  2. Step 2: Convert to fraction form
    8,208.67/12,307.98 = 3,821.92/x
  3. Step 3: Cross multiply
    8,208.67x = 12,307.98 × 3,821.92
  4. Step 4: Simplify right side
    8,208.67x = 47,040,114.92
  5. Step 5: Solve for x
    x = 47,040,114.92/8,208.67
  6. Step 6: Final answer
    x = 5,730.54

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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.