Home / 16,887.21-23,289.21-10,912.61

Finding the Fourth Proportional to 16,887.21, 23,289.21 and 10,912.61

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Solution

The fourth proportional to 16,887.21, 23,289.21 and 10,912.61 is: 15,049.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,887.21 : 23,289.21 = 10,912.61 : x
  2. Step 2: Convert to fraction form
    16,887.21/23,289.21 = 10,912.61/x
  3. Step 3: Cross multiply
    16,887.21x = 23,289.21 × 10,912.61
  4. Step 4: Simplify right side
    16,887.21x = 254,145,949.49
  5. Step 5: Solve for x
    x = 254,145,949.49/16,887.21
  6. Step 6: Final answer
    x = 15,049.61

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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.