Home / 12,912.18-19,396.20-10,941.90

Finding the Fourth Proportional to 12,912.18, 19,396.20 and 10,941.90

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Solution

The fourth proportional to 12,912.18, 19,396.20 and 10,941.90 is: 16,436.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,912.18 : 19,396.20 = 10,941.90 : x
  2. Step 2: Convert to fraction form
    12,912.18/19,396.20 = 10,941.90/x
  3. Step 3: Cross multiply
    12,912.18x = 19,396.20 × 10,941.90
  4. Step 4: Simplify right side
    12,912.18x = 212,231,280.78
  5. Step 5: Solve for x
    x = 212,231,280.78/12,912.18
  6. Step 6: Final answer
    x = 16,436.52

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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.