Home / 17,983.73-26,989.37-12,707.39

Finding the Fourth Proportional to 17,983.73, 26,989.37 and 12,707.39

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Solution

The fourth proportional to 17,983.73, 26,989.37 and 12,707.39 is: 19,070.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,983.73 : 26,989.37 = 12,707.39 : x
  2. Step 2: Convert to fraction form
    17,983.73/26,989.37 = 12,707.39/x
  3. Step 3: Cross multiply
    17,983.73x = 26,989.37 × 12,707.39
  4. Step 4: Simplify right side
    17,983.73x = 342,964,251.96
  5. Step 5: Solve for x
    x = 342,964,251.96/17,983.73
  6. Step 6: Final answer
    x = 19,070.81

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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.