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Finding the Fourth Proportional to 12,906.06, 19,359.10 and 3,672.06

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Solution

The fourth proportional to 12,906.06, 19,359.10 and 3,672.06 is: 5,508.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,906.06 : 19,359.10 = 3,672.06 : x
  2. Step 2: Convert to fraction form
    12,906.06/19,359.10 = 3,672.06/x
  3. Step 3: Cross multiply
    12,906.06x = 19,359.10 × 3,672.06
  4. Step 4: Simplify right side
    12,906.06x = 71,087,776.75
  5. Step 5: Solve for x
    x = 71,087,776.75/12,906.06
  6. Step 6: Final answer
    x = 5,508.09

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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.