Home / 11,355.50-17,040.90-3,959.93

Finding the Fourth Proportional to 11,355.50, 17,040.90 and 3,959.93

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Solution

The fourth proportional to 11,355.50, 17,040.90 and 3,959.93 is: 5,942.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,355.50 : 17,040.90 = 3,959.93 : x
  2. Step 2: Convert to fraction form
    11,355.50/17,040.90 = 3,959.93/x
  3. Step 3: Cross multiply
    11,355.50x = 17,040.90 × 3,959.93
  4. Step 4: Simplify right side
    11,355.50x = 67,480,771.14
  5. Step 5: Solve for x
    x = 67,480,771.14/11,355.50
  6. Step 6: Final answer
    x = 5,942.56

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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.