Home / 12,626.72-18,938.40-3,393.44

Finding the Fourth Proportional to 12,626.72, 18,938.40 and 3,393.44

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Solution

The fourth proportional to 12,626.72, 18,938.40 and 3,393.44 is: 5,089.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,626.72 : 18,938.40 = 3,393.44 : x
  2. Step 2: Convert to fraction form
    12,626.72/18,938.40 = 3,393.44/x
  3. Step 3: Cross multiply
    12,626.72x = 18,938.40 × 3,393.44
  4. Step 4: Simplify right side
    12,626.72x = 64,266,324.10
  5. Step 5: Solve for x
    x = 64,266,324.10/12,626.72
  6. Step 6: Final answer
    x = 5,089.71

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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.