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Finding the Fourth Proportional to 12,167.61, 18,195.81 and 8,847.02

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Solution

The fourth proportional to 12,167.61, 18,195.81 and 8,847.02 is: 13,230.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,167.61 : 18,195.81 = 8,847.02 : x
  2. Step 2: Convert to fraction form
    12,167.61/18,195.81 = 8,847.02/x
  3. Step 3: Cross multiply
    12,167.61x = 18,195.81 × 8,847.02
  4. Step 4: Simplify right side
    12,167.61x = 160,978,604.01
  5. Step 5: Solve for x
    x = 160,978,604.01/12,167.61
  6. Step 6: Final answer
    x = 13,230.09

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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.