Home / 8,620.26-11,892.21-5,431.62

Finding the Fourth Proportional to 8,620.26, 11,892.21 and 5,431.62

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Solution

The fourth proportional to 8,620.26, 11,892.21 and 5,431.62 is: 7,493.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,620.26 : 11,892.21 = 5,431.62 : x
  2. Step 2: Convert to fraction form
    8,620.26/11,892.21 = 5,431.62/x
  3. Step 3: Cross multiply
    8,620.26x = 11,892.21 × 5,431.62
  4. Step 4: Simplify right side
    8,620.26x = 64,593,965.68
  5. Step 5: Solve for x
    x = 64,593,965.68/8,620.26
  6. Step 6: Final answer
    x = 7,493.27

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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.