Home / 21,144.54-29,179.35-11,713.02

Finding the Fourth Proportional to 21,144.54, 29,179.35 and 11,713.02

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Solution

The fourth proportional to 21,144.54, 29,179.35 and 11,713.02 is: 16,163.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,144.54 : 29,179.35 = 11,713.02 : x
  2. Step 2: Convert to fraction form
    21,144.54/29,179.35 = 11,713.02/x
  3. Step 3: Cross multiply
    21,144.54x = 29,179.35 × 11,713.02
  4. Step 4: Simplify right side
    21,144.54x = 341,778,310.14
  5. Step 5: Solve for x
    x = 341,778,310.14/21,144.54
  6. Step 6: Final answer
    x = 16,163.90

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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.