Home / 8,179.60-12,263.40-3,246.80

Finding the Fourth Proportional to 8,179.60, 12,263.40 and 3,246.80

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Solution

The fourth proportional to 8,179.60, 12,263.40 and 3,246.80 is: 4,867.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,179.60 : 12,263.40 = 3,246.80 : x
  2. Step 2: Convert to fraction form
    8,179.60/12,263.40 = 3,246.80/x
  3. Step 3: Cross multiply
    8,179.60x = 12,263.40 × 3,246.80
  4. Step 4: Simplify right side
    8,179.60x = 39,816,807.12
  5. Step 5: Solve for x
    x = 39,816,807.12/8,179.60
  6. Step 6: Final answer
    x = 4,867.82

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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.