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Finding the Fourth Proportional to 8,226.60, 12,332.70 and 7,351.80

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Solution

The fourth proportional to 8,226.60, 12,332.70 and 7,351.80 is: 11,021.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,226.60 : 12,332.70 = 7,351.80 : x
  2. Step 2: Convert to fraction form
    8,226.60/12,332.70 = 7,351.80/x
  3. Step 3: Cross multiply
    8,226.60x = 12,332.70 × 7,351.80
  4. Step 4: Simplify right side
    8,226.60x = 90,667,543.86
  5. Step 5: Solve for x
    x = 90,667,543.86/8,226.60
  6. Step 6: Final answer
    x = 11,021.27

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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.