Home / 8,310.18-12,465.06-3,378.60

Finding the Fourth Proportional to 8,310.18, 12,465.06 and 3,378.60

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Solution

The fourth proportional to 8,310.18, 12,465.06 and 3,378.60 is: 5,067.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,310.18 : 12,465.06 = 3,378.60 : x
  2. Step 2: Convert to fraction form
    8,310.18/12,465.06 = 3,378.60/x
  3. Step 3: Cross multiply
    8,310.18x = 12,465.06 × 3,378.60
  4. Step 4: Simplify right side
    8,310.18x = 42,114,451.72
  5. Step 5: Solve for x
    x = 42,114,451.72/8,310.18
  6. Step 6: Final answer
    x = 5,067.81

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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.