Home / 8,185.14-12,278.93-2,919.74

Finding the Fourth Proportional to 8,185.14, 12,278.93 and 2,919.74

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Solution

The fourth proportional to 8,185.14, 12,278.93 and 2,919.74 is: 4,380.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,185.14 : 12,278.93 = 2,919.74 : x
  2. Step 2: Convert to fraction form
    8,185.14/12,278.93 = 2,919.74/x
  3. Step 3: Cross multiply
    8,185.14x = 12,278.93 × 2,919.74
  4. Step 4: Simplify right side
    8,185.14x = 35,851,207.08
  5. Step 5: Solve for x
    x = 35,851,207.08/8,185.14
  6. Step 6: Final answer
    x = 4,380.04

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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.