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Finding the Fourth Proportional to 12,044.88, 18,078.12 and 10,082.79

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Solution

The fourth proportional to 12,044.88, 18,078.12 and 10,082.79 is: 15,133.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,044.88 : 18,078.12 = 10,082.79 : x
  2. Step 2: Convert to fraction form
    12,044.88/18,078.12 = 10,082.79/x
  3. Step 3: Cross multiply
    12,044.88x = 18,078.12 × 10,082.79
  4. Step 4: Simplify right side
    12,044.88x = 182,277,887.55
  5. Step 5: Solve for x
    x = 182,277,887.55/12,044.88
  6. Step 6: Final answer
    x = 15,133.23

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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.