Home / 8,694.35-13,041.65-2,120.66

Finding the Fourth Proportional to 8,694.35, 13,041.65 and 2,120.66

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Solution

The fourth proportional to 8,694.35, 13,041.65 and 2,120.66 is: 3,181.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,694.35 : 13,041.65 = 2,120.66 : x
  2. Step 2: Convert to fraction form
    8,694.35/13,041.65 = 2,120.66/x
  3. Step 3: Cross multiply
    8,694.35x = 13,041.65 × 2,120.66
  4. Step 4: Simplify right side
    8,694.35x = 27,656,845.58
  5. Step 5: Solve for x
    x = 27,656,845.58/8,694.35
  6. Step 6: Final answer
    x = 3,181.02

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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.