Home / 7,982.16-11,975.61-4,089.30

Finding the Fourth Proportional to 7,982.16, 11,975.61 and 4,089.30

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Solution

The fourth proportional to 7,982.16, 11,975.61 and 4,089.30 is: 6,135.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,982.16 : 11,975.61 = 4,089.30 : x
  2. Step 2: Convert to fraction form
    7,982.16/11,975.61 = 4,089.30/x
  3. Step 3: Cross multiply
    7,982.16x = 11,975.61 × 4,089.30
  4. Step 4: Simplify right side
    7,982.16x = 48,971,861.97
  5. Step 5: Solve for x
    x = 48,971,861.97/7,982.16
  6. Step 6: Final answer
    x = 6,135.16

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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.