Home / 15,981.05-23,982.51-8,195.33

Finding the Fourth Proportional to 15,981.05, 23,982.51 and 8,195.33

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Solution

The fourth proportional to 15,981.05, 23,982.51 and 8,195.33 is: 12,298.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,981.05 : 23,982.51 = 8,195.33 : x
  2. Step 2: Convert to fraction form
    15,981.05/23,982.51 = 8,195.33/x
  3. Step 3: Cross multiply
    15,981.05x = 23,982.51 × 8,195.33
  4. Step 4: Simplify right side
    15,981.05x = 196,544,674.37
  5. Step 5: Solve for x
    x = 196,544,674.37/15,981.05
  6. Step 6: Final answer
    x = 12,298.61

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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.