Home / 11,860.72-17,790.48-3,540.81

Finding the Fourth Proportional to 11,860.72, 17,790.48 and 3,540.81

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Solution

The fourth proportional to 11,860.72, 17,790.48 and 3,540.81 is: 5,311.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,860.72 : 17,790.48 = 3,540.81 : x
  2. Step 2: Convert to fraction form
    11,860.72/17,790.48 = 3,540.81/x
  3. Step 3: Cross multiply
    11,860.72x = 17,790.48 × 3,540.81
  4. Step 4: Simplify right side
    11,860.72x = 62,992,666.17
  5. Step 5: Solve for x
    x = 62,992,666.17/11,860.72
  6. Step 6: Final answer
    x = 5,311.03

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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.