Home / 21,163.33-29,205.72-11,604.09

Finding the Fourth Proportional to 21,163.33, 29,205.72 and 11,604.09

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Solution

The fourth proportional to 21,163.33, 29,205.72 and 11,604.09 is: 16,013.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,163.33 : 29,205.72 = 11,604.09 : x
  2. Step 2: Convert to fraction form
    21,163.33/29,205.72 = 11,604.09/x
  3. Step 3: Cross multiply
    21,163.33x = 29,205.72 × 11,604.09
  4. Step 4: Simplify right side
    21,163.33x = 338,905,803.39
  5. Step 5: Solve for x
    x = 338,905,803.39/21,163.33
  6. Step 6: Final answer
    x = 16,013.82

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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.