Home / 16,821.14-23,222.79-11,163.56

Finding the Fourth Proportional to 16,821.14, 23,222.79 and 11,163.56

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Solution

The fourth proportional to 16,821.14, 23,222.79 and 11,163.56 is: 15,412.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,821.14 : 23,222.79 = 11,163.56 : x
  2. Step 2: Convert to fraction form
    16,821.14/23,222.79 = 11,163.56/x
  3. Step 3: Cross multiply
    16,821.14x = 23,222.79 × 11,163.56
  4. Step 4: Simplify right side
    16,821.14x = 259,248,893.42
  5. Step 5: Solve for x
    x = 259,248,893.42/16,821.14
  6. Step 6: Final answer
    x = 15,412.09

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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.