Home / 16,781.45-23,161.75-12,795.44

Finding the Fourth Proportional to 16,781.45, 23,161.75 and 12,795.44

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Solution

The fourth proportional to 16,781.45, 23,161.75 and 12,795.44 is: 17,660.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,781.45 : 23,161.75 = 12,795.44 : x
  2. Step 2: Convert to fraction form
    16,781.45/23,161.75 = 12,795.44/x
  3. Step 3: Cross multiply
    16,781.45x = 23,161.75 × 12,795.44
  4. Step 4: Simplify right side
    16,781.45x = 296,364,634.62
  5. Step 5: Solve for x
    x = 296,364,634.62/16,781.45
  6. Step 6: Final answer
    x = 17,660.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.