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Finding the Fourth Proportional to 18,333.30, 25,299.96 and 9,949.80

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Solution

The fourth proportional to 18,333.30, 25,299.96 and 9,949.80 is: 13,730.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,333.30 : 25,299.96 = 9,949.80 : x
  2. Step 2: Convert to fraction form
    18,333.30/25,299.96 = 9,949.80/x
  3. Step 3: Cross multiply
    18,333.30x = 25,299.96 × 9,949.80
  4. Step 4: Simplify right side
    18,333.30x = 251,729,542.01
  5. Step 5: Solve for x
    x = 251,729,542.01/18,333.30
  6. Step 6: Final answer
    x = 13,730.73

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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.