Home / 8,608.45-11,882.21-5,072.80

Finding the Fourth Proportional to 8,608.45, 11,882.21 and 5,072.80

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Solution

The fourth proportional to 8,608.45, 11,882.21 and 5,072.80 is: 7,001.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,608.45 : 11,882.21 = 5,072.80 : x
  2. Step 2: Convert to fraction form
    8,608.45/11,882.21 = 5,072.80/x
  3. Step 3: Cross multiply
    8,608.45x = 11,882.21 × 5,072.80
  4. Step 4: Simplify right side
    8,608.45x = 60,276,074.89
  5. Step 5: Solve for x
    x = 60,276,074.89/8,608.45
  6. Step 6: Final answer
    x = 7,001.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.