Home / 19,611.38-27,063.48-11,112.86

Finding the Fourth Proportional to 19,611.38, 27,063.48 and 11,112.86

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Solution

The fourth proportional to 19,611.38, 27,063.48 and 11,112.86 is: 15,335.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,611.38 : 27,063.48 = 11,112.86 : x
  2. Step 2: Convert to fraction form
    19,611.38/27,063.48 = 11,112.86/x
  3. Step 3: Cross multiply
    19,611.38x = 27,063.48 × 11,112.86
  4. Step 4: Simplify right side
    19,611.38x = 300,752,664.35
  5. Step 5: Solve for x
    x = 300,752,664.35/19,611.38
  6. Step 6: Final answer
    x = 15,335.62

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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.