Home / 8,345.22-12,517.51-2,105.15

Finding the Fourth Proportional to 8,345.22, 12,517.51 and 2,105.15

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Solution

The fourth proportional to 8,345.22, 12,517.51 and 2,105.15 is: 3,157.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,345.22 : 12,517.51 = 2,105.15 : x
  2. Step 2: Convert to fraction form
    8,345.22/12,517.51 = 2,105.15/x
  3. Step 3: Cross multiply
    8,345.22x = 12,517.51 × 2,105.15
  4. Step 4: Simplify right side
    8,345.22x = 26,351,262.21
  5. Step 5: Solve for x
    x = 26,351,262.21/8,345.22
  6. Step 6: Final answer
    x = 3,157.65

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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.