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Finding the Fourth Proportional to 12,076.88, 18,114.88 and 8,153.92

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Solution

The fourth proportional to 12,076.88, 18,114.88 and 8,153.92 is: 12,230.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,076.88 : 18,114.88 = 8,153.92 : x
  2. Step 2: Convert to fraction form
    12,076.88/18,114.88 = 8,153.92/x
  3. Step 3: Cross multiply
    12,076.88x = 18,114.88 × 8,153.92
  4. Step 4: Simplify right side
    12,076.88x = 147,707,282.33
  5. Step 5: Solve for x
    x = 147,707,282.33/12,076.88
  6. Step 6: Final answer
    x = 12,230.58

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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.