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Finding the Fourth Proportional to 18,229.50, 25,156.73 and 9,846

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Solution

The fourth proportional to 18,229.50, 25,156.73 and 9,846 is: 13,587.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,229.50 : 25,156.73 = 9,846 : x
  2. Step 2: Convert to fraction form
    18,229.50/25,156.73 = 9,846/x
  3. Step 3: Cross multiply
    18,229.50x = 25,156.73 × 9,846
  4. Step 4: Simplify right side
    18,229.50x = 247,693,132.81
  5. Step 5: Solve for x
    x = 247,693,132.81/18,229.50
  6. Step 6: Final answer
    x = 13,587.49

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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.