Home / 16,781.91-23,163.71-9,615.84

Finding the Fourth Proportional to 16,781.91, 23,163.71 and 9,615.84

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Solution

The fourth proportional to 16,781.91, 23,163.71 and 9,615.84 is: 13,272.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,781.91 : 23,163.71 = 9,615.84 : x
  2. Step 2: Convert to fraction form
    16,781.91/23,163.71 = 9,615.84/x
  3. Step 3: Cross multiply
    16,781.91x = 23,163.71 × 9,615.84
  4. Step 4: Simplify right side
    16,781.91x = 222,738,481.09
  5. Step 5: Solve for x
    x = 222,738,481.09/16,781.91
  6. Step 6: Final answer
    x = 13,272.53

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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.