Home / 9,418.44-14,128.02-3,178.56

Finding the Fourth Proportional to 9,418.44, 14,128.02 and 3,178.56

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Solution

The fourth proportional to 9,418.44, 14,128.02 and 3,178.56 is: 4,767.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,418.44 : 14,128.02 = 3,178.56 : x
  2. Step 2: Convert to fraction form
    9,418.44/14,128.02 = 3,178.56/x
  3. Step 3: Cross multiply
    9,418.44x = 14,128.02 × 3,178.56
  4. Step 4: Simplify right side
    9,418.44x = 44,906,759.25
  5. Step 5: Solve for x
    x = 44,906,759.25/9,418.44
  6. Step 6: Final answer
    x = 4,767.96

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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.