Home / 12,434.38-18,651.54-3,669.28

Finding the Fourth Proportional to 12,434.38, 18,651.54 and 3,669.28

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Solution

The fourth proportional to 12,434.38, 18,651.54 and 3,669.28 is: 5,503.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,434.38 : 18,651.54 = 3,669.28 : x
  2. Step 2: Convert to fraction form
    12,434.38/18,651.54 = 3,669.28/x
  3. Step 3: Cross multiply
    12,434.38x = 18,651.54 × 3,669.28
  4. Step 4: Simplify right side
    12,434.38x = 68,437,722.69
  5. Step 5: Solve for x
    x = 68,437,722.69/12,434.38
  6. Step 6: Final answer
    x = 5,503.91

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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.