Home / 12,614.28-18,914.94-5,685

Finding the Fourth Proportional to 12,614.28, 18,914.94 and 5,685

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Solution

The fourth proportional to 12,614.28, 18,914.94 and 5,685 is: 8,524.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,614.28 : 18,914.94 = 5,685 : x
  2. Step 2: Convert to fraction form
    12,614.28/18,914.94 = 5,685/x
  3. Step 3: Cross multiply
    12,614.28x = 18,914.94 × 5,685
  4. Step 4: Simplify right side
    12,614.28x = 107,531,433.90
  5. Step 5: Solve for x
    x = 107,531,433.90/12,614.28
  6. Step 6: Final answer
    x = 8,524.58

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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.