Home / 12,912.04-19,367.64-3,678.04

Finding the Fourth Proportional to 12,912.04, 19,367.64 and 3,678.04

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Solution

The fourth proportional to 12,912.04, 19,367.64 and 3,678.04 is: 5,516.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,912.04 : 19,367.64 = 3,678.04 : x
  2. Step 2: Convert to fraction form
    12,912.04/19,367.64 = 3,678.04/x
  3. Step 3: Cross multiply
    12,912.04x = 19,367.64 × 3,678.04
  4. Step 4: Simplify right side
    12,912.04x = 71,234,954.63
  5. Step 5: Solve for x
    x = 71,234,954.63/12,912.04
  6. Step 6: Final answer
    x = 5,516.94

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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.