Home / 19,197.15-28,730.70-11,806.29

Finding the Fourth Proportional to 19,197.15, 28,730.70 and 11,806.29

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Solution

The fourth proportional to 19,197.15, 28,730.70 and 11,806.29 is: 17,669.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,197.15 : 28,730.70 = 11,806.29 : x
  2. Step 2: Convert to fraction form
    19,197.15/28,730.70 = 11,806.29/x
  3. Step 3: Cross multiply
    19,197.15x = 28,730.70 × 11,806.29
  4. Step 4: Simplify right side
    19,197.15x = 339,202,976.10
  5. Step 5: Solve for x
    x = 339,202,976.10/19,197.15
  6. Step 6: Final answer
    x = 17,669.44

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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.