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Finding the Fourth Proportional to 12,680.22, 19,020.26 and 3,446.22

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Solution

The fourth proportional to 12,680.22, 19,020.26 and 3,446.22 is: 5,169.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,680.22 : 19,020.26 = 3,446.22 : x
  2. Step 2: Convert to fraction form
    12,680.22/19,020.26 = 3,446.22/x
  3. Step 3: Cross multiply
    12,680.22x = 19,020.26 × 3,446.22
  4. Step 4: Simplify right side
    12,680.22x = 65,548,000.42
  5. Step 5: Solve for x
    x = 65,548,000.42/12,680.22
  6. Step 6: Final answer
    x = 5,169.31

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1.5x scale

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.