Home / 11,860.14-17,765.60-6,914.78

Finding the Fourth Proportional to 11,860.14, 17,765.60 and 6,914.78

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Solution

The fourth proportional to 11,860.14, 17,765.60 and 6,914.78 is: 10,357.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,860.14 : 17,765.60 = 6,914.78 : x
  2. Step 2: Convert to fraction form
    11,860.14/17,765.60 = 6,914.78/x
  3. Step 3: Cross multiply
    11,860.14x = 17,765.60 × 6,914.78
  4. Step 4: Simplify right side
    11,860.14x = 122,845,109.45
  5. Step 5: Solve for x
    x = 122,845,109.45/11,860.14
  6. Step 6: Final answer
    x = 10,357.82

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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.