Home / 20,208.88-27,889.82-11,713.74

Finding the Fourth Proportional to 20,208.88, 27,889.82 and 11,713.74

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Solution

The fourth proportional to 20,208.88, 27,889.82 and 11,713.74 is: 16,165.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,208.88 : 27,889.82 = 11,713.74 : x
  2. Step 2: Convert to fraction form
    20,208.88/27,889.82 = 11,713.74/x
  3. Step 3: Cross multiply
    20,208.88x = 27,889.82 × 11,713.74
  4. Step 4: Simplify right side
    20,208.88x = 326,694,100.13
  5. Step 5: Solve for x
    x = 326,694,100.13/20,208.88
  6. Step 6: Final answer
    x = 16,165.87

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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.