Home / 8,694.46-13,041.51-2,120.68

Finding the Fourth Proportional to 8,694.46, 13,041.51 and 2,120.68

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Solution

The fourth proportional to 8,694.46, 13,041.51 and 2,120.68 is: 3,180.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,694.46 : 13,041.51 = 2,120.68 : x
  2. Step 2: Convert to fraction form
    8,694.46/13,041.51 = 2,120.68/x
  3. Step 3: Cross multiply
    8,694.46x = 13,041.51 × 2,120.68
  4. Step 4: Simplify right side
    8,694.46x = 27,656,869.43
  5. Step 5: Solve for x
    x = 27,656,869.43/8,694.46
  6. Step 6: Final answer
    x = 3,180.98

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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.