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Finding the Fourth Proportional to 18,307.73, 27,448.83 and 8,433.42

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Solution

The fourth proportional to 18,307.73, 27,448.83 and 8,433.42 is: 12,644.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,307.73 : 27,448.83 = 8,433.42 : x
  2. Step 2: Convert to fraction form
    18,307.73/27,448.83 = 8,433.42/x
  3. Step 3: Cross multiply
    18,307.73x = 27,448.83 × 8,433.42
  4. Step 4: Simplify right side
    18,307.73x = 231,487,511.90
  5. Step 5: Solve for x
    x = 231,487,511.90/18,307.73
  6. Step 6: Final answer
    x = 12,644.25

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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.