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Finding the Fourth Proportional to 18,333, 25,299.56 and 9,949.50

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Solution

The fourth proportional to 18,333, 25,299.56 and 9,949.50 is: 13,730.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,333 : 25,299.56 = 9,949.50 : x
  2. Step 2: Convert to fraction form
    18,333/25,299.56 = 9,949.50/x
  3. Step 3: Cross multiply
    18,333x = 25,299.56 × 9,949.50
  4. Step 4: Simplify right side
    18,333x = 251,717,997.09
  5. Step 5: Solve for x
    x = 251,717,997.09/18,333
  6. Step 6: Final answer
    x = 13,730.32

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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.