Home / 12,634.85-18,939.08-4,311.97

Finding the Fourth Proportional to 12,634.85, 18,939.08 and 4,311.97

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Solution

The fourth proportional to 12,634.85, 18,939.08 and 4,311.97 is: 6,463.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,634.85 : 18,939.08 = 4,311.97 : x
  2. Step 2: Convert to fraction form
    12,634.85/18,939.08 = 4,311.97/x
  3. Step 3: Cross multiply
    12,634.85x = 18,939.08 × 4,311.97
  4. Step 4: Simplify right side
    12,634.85x = 81,664,708.22
  5. Step 5: Solve for x
    x = 81,664,708.22/12,634.85
  6. Step 6: Final answer
    x = 6,463.45

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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.