Home / 7,986.70-11,975.96-4,292.04

Finding the Fourth Proportional to 7,986.70, 11,975.96 and 4,292.04

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Solution

The fourth proportional to 7,986.70, 11,975.96 and 4,292.04 is: 6,435.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.70 : 11,975.96 = 4,292.04 : x
  2. Step 2: Convert to fraction form
    7,986.70/11,975.96 = 4,292.04/x
  3. Step 3: Cross multiply
    7,986.70x = 11,975.96 × 4,292.04
  4. Step 4: Simplify right side
    7,986.70x = 51,401,299.36
  5. Step 5: Solve for x
    x = 51,401,299.36/7,986.70
  6. Step 6: Final answer
    x = 6,435.86

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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.