Home / 12,603.28-18,905.97-3,838.27

Finding the Fourth Proportional to 12,603.28, 18,905.97 and 3,838.27

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Solution

The fourth proportional to 12,603.28, 18,905.97 and 3,838.27 is: 5,757.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,603.28 : 18,905.97 = 3,838.27 : x
  2. Step 2: Convert to fraction form
    12,603.28/18,905.97 = 3,838.27/x
  3. Step 3: Cross multiply
    12,603.28x = 18,905.97 × 3,838.27
  4. Step 4: Simplify right side
    12,603.28x = 72,566,217.47
  5. Step 5: Solve for x
    x = 72,566,217.47/12,603.28
  6. Step 6: Final answer
    x = 5,757.72

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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.