Home / 16,203.88-22,361.16-9,131.50

Finding the Fourth Proportional to 16,203.88, 22,361.16 and 9,131.50

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Solution

The fourth proportional to 16,203.88, 22,361.16 and 9,131.50 is: 12,601.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,203.88 : 22,361.16 = 9,131.50 : x
  2. Step 2: Convert to fraction form
    16,203.88/22,361.16 = 9,131.50/x
  3. Step 3: Cross multiply
    16,203.88x = 22,361.16 × 9,131.50
  4. Step 4: Simplify right side
    16,203.88x = 204,190,932.54
  5. Step 5: Solve for x
    x = 204,190,932.54/16,203.88
  6. Step 6: Final answer
    x = 12,601.36

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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.