Home / 8,118.43-12,179.47-2,571.35

Finding the Fourth Proportional to 8,118.43, 12,179.47 and 2,571.35

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Solution

The fourth proportional to 8,118.43, 12,179.47 and 2,571.35 is: 3,857.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,118.43 : 12,179.47 = 2,571.35 : x
  2. Step 2: Convert to fraction form
    8,118.43/12,179.47 = 2,571.35/x
  3. Step 3: Cross multiply
    8,118.43x = 12,179.47 × 2,571.35
  4. Step 4: Simplify right side
    8,118.43x = 31,317,680.18
  5. Step 5: Solve for x
    x = 31,317,680.18/8,118.43
  6. Step 6: Final answer
    x = 3,857.60

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1.5x scale

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.