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Finding the Fourth Proportional to 8,079.93, 12,113.70 and 3,694.32

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Solution

The fourth proportional to 8,079.93, 12,113.70 and 3,694.32 is: 5,538.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,079.93 : 12,113.70 = 3,694.32 : x
  2. Step 2: Convert to fraction form
    8,079.93/12,113.70 = 3,694.32/x
  3. Step 3: Cross multiply
    8,079.93x = 12,113.70 × 3,694.32
  4. Step 4: Simplify right side
    8,079.93x = 44,751,884.18
  5. Step 5: Solve for x
    x = 44,751,884.18/8,079.93
  6. Step 6: Final answer
    x = 5,538.65

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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.