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Finding the Fourth Proportional to 12,505.19, 18,754.99 and 3,738.97

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Solution

The fourth proportional to 12,505.19, 18,754.99 and 3,738.97 is: 5,607.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,505.19 : 18,754.99 = 3,738.97 : x
  2. Step 2: Convert to fraction form
    12,505.19/18,754.99 = 3,738.97/x
  3. Step 3: Cross multiply
    12,505.19x = 18,754.99 × 3,738.97
  4. Step 4: Simplify right side
    12,505.19x = 70,124,344.96
  5. Step 5: Solve for x
    x = 70,124,344.96/12,505.19
  6. Step 6: Final answer
    x = 5,607.62

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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.