Home / 10,611.88-15,917.76-2,714.38

Finding the Fourth Proportional to 10,611.88, 15,917.76 and 2,714.38

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Solution

The fourth proportional to 10,611.88, 15,917.76 and 2,714.38 is: 4,071.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,611.88 : 15,917.76 = 2,714.38 : x
  2. Step 2: Convert to fraction form
    10,611.88/15,917.76 = 2,714.38/x
  3. Step 3: Cross multiply
    10,611.88x = 15,917.76 × 2,714.38
  4. Step 4: Simplify right side
    10,611.88x = 43,206,832.67
  5. Step 5: Solve for x
    x = 43,206,832.67/10,611.88
  6. Step 6: Final answer
    x = 4,071.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.