Home / 12,619.22-18,928.11-3,384.50

Finding the Fourth Proportional to 12,619.22, 18,928.11 and 3,384.50

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Solution

The fourth proportional to 12,619.22, 18,928.11 and 3,384.50 is: 5,076.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,619.22 : 18,928.11 = 3,384.50 : x
  2. Step 2: Convert to fraction form
    12,619.22/18,928.11 = 3,384.50/x
  3. Step 3: Cross multiply
    12,619.22x = 18,928.11 × 3,384.50
  4. Step 4: Simplify right side
    12,619.22x = 64,062,188.30
  5. Step 5: Solve for x
    x = 64,062,188.30/12,619.22
  6. Step 6: Final answer
    x = 5,076.56

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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.