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Finding the Fourth Proportional to 16,832, 23,228.64 and 9,380.48

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Solution

The fourth proportional to 16,832, 23,228.64 and 9,380.48 is: 12,945.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,832 : 23,228.64 = 9,380.48 : x
  2. Step 2: Convert to fraction form
    16,832/23,228.64 = 9,380.48/x
  3. Step 3: Cross multiply
    16,832x = 23,228.64 × 9,380.48
  4. Step 4: Simplify right side
    16,832x = 217,895,792.95
  5. Step 5: Solve for x
    x = 217,895,792.95/16,832
  6. Step 6: Final answer
    x = 12,945.33

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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.