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Finding the Fourth Proportional to 8,323.75, 12,485.67 and 2,167.75

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Solution

The fourth proportional to 8,323.75, 12,485.67 and 2,167.75 is: 3,251.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,323.75 : 12,485.67 = 2,167.75 : x
  2. Step 2: Convert to fraction form
    8,323.75/12,485.67 = 2,167.75/x
  3. Step 3: Cross multiply
    8,323.75x = 12,485.67 × 2,167.75
  4. Step 4: Simplify right side
    8,323.75x = 27,065,811.14
  5. Step 5: Solve for x
    x = 27,065,811.14/8,323.75
  6. Step 6: Final answer
    x = 3,251.64

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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.