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Finding the Fourth Proportional to 18,650.30, 25,728.71 and 11,092.39

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Solution

The fourth proportional to 18,650.30, 25,728.71 and 11,092.39 is: 15,302.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,650.30 : 25,728.71 = 11,092.39 : x
  2. Step 2: Convert to fraction form
    18,650.30/25,728.71 = 11,092.39/x
  3. Step 3: Cross multiply
    18,650.30x = 25,728.71 × 11,092.39
  4. Step 4: Simplify right side
    18,650.30x = 285,392,885.52
  5. Step 5: Solve for x
    x = 285,392,885.52/18,650.30
  6. Step 6: Final answer
    x = 15,302.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.