Home / 12,906.10-19,358.46-3,545.94

Finding the Fourth Proportional to 12,906.10, 19,358.46 and 3,545.94

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Solution

The fourth proportional to 12,906.10, 19,358.46 and 3,545.94 is: 5,318.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,906.10 : 19,358.46 = 3,545.94 : x
  2. Step 2: Convert to fraction form
    12,906.10/19,358.46 = 3,545.94/x
  3. Step 3: Cross multiply
    12,906.10x = 19,358.46 × 3,545.94
  4. Step 4: Simplify right side
    12,906.10x = 68,644,010.25
  5. Step 5: Solve for x
    x = 68,644,010.25/12,906.10
  6. Step 6: Final answer
    x = 5,318.73

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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.