Home / 8,179.40-12,263.22-2,629.55

Finding the Fourth Proportional to 8,179.40, 12,263.22 and 2,629.55

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Solution

The fourth proportional to 8,179.40, 12,263.22 and 2,629.55 is: 3,942.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,179.40 : 12,263.22 = 2,629.55 : x
  2. Step 2: Convert to fraction form
    8,179.40/12,263.22 = 2,629.55/x
  3. Step 3: Cross multiply
    8,179.40x = 12,263.22 × 2,629.55
  4. Step 4: Simplify right side
    8,179.40x = 32,246,688.83
  5. Step 5: Solve for x
    x = 32,246,688.83/8,179.40
  6. Step 6: Final answer
    x = 3,942.43

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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.