Home / 8,220.18-12,334.33-3,837.95

Finding the Fourth Proportional to 8,220.18, 12,334.33 and 3,837.95

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Solution

The fourth proportional to 8,220.18, 12,334.33 and 3,837.95 is: 5,758.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.18 : 12,334.33 = 3,837.95 : x
  2. Step 2: Convert to fraction form
    8,220.18/12,334.33 = 3,837.95/x
  3. Step 3: Cross multiply
    8,220.18x = 12,334.33 × 3,837.95
  4. Step 4: Simplify right side
    8,220.18x = 47,338,509.61
  5. Step 5: Solve for x
    x = 47,338,509.61/8,220.18
  6. Step 6: Final answer
    x = 5,758.81

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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.