Home / 12,912.38-19,366.02-3,549.98

Finding the Fourth Proportional to 12,912.38, 19,366.02 and 3,549.98

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Solution

The fourth proportional to 12,912.38, 19,366.02 and 3,549.98 is: 5,324.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,912.38 : 19,366.02 = 3,549.98 : x
  2. Step 2: Convert to fraction form
    12,912.38/19,366.02 = 3,549.98/x
  3. Step 3: Cross multiply
    12,912.38x = 19,366.02 × 3,549.98
  4. Step 4: Simplify right side
    12,912.38x = 68,749,025.44
  5. Step 5: Solve for x
    x = 68,749,025.44/12,912.38
  6. Step 6: Final answer
    x = 5,324.27

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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.