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Finding the Fourth Proportional to 11,228.60, 16,793.46 and 8,276.60

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Solution

The fourth proportional to 11,228.60, 16,793.46 and 8,276.60 is: 12,378.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,228.60 : 16,793.46 = 8,276.60 : x
  2. Step 2: Convert to fraction form
    11,228.60/16,793.46 = 8,276.60/x
  3. Step 3: Cross multiply
    11,228.60x = 16,793.46 × 8,276.60
  4. Step 4: Simplify right side
    11,228.60x = 138,992,751.04
  5. Step 5: Solve for x
    x = 138,992,751.04/11,228.60
  6. Step 6: Final answer
    x = 12,378.46

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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.