Home / 8,694.31-13,041.61-2,120.62

Finding the Fourth Proportional to 8,694.31, 13,041.61 and 2,120.62

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Solution

The fourth proportional to 8,694.31, 13,041.61 and 2,120.62 is: 3,180.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,694.31 : 13,041.61 = 2,120.62 : x
  2. Step 2: Convert to fraction form
    8,694.31/13,041.61 = 2,120.62/x
  3. Step 3: Cross multiply
    8,694.31x = 13,041.61 × 2,120.62
  4. Step 4: Simplify right side
    8,694.31x = 27,656,339.95
  5. Step 5: Solve for x
    x = 27,656,339.95/8,694.31
  6. Step 6: Final answer
    x = 3,180.97

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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.