Home / 8,215.12-11,336.68-4,489.04

Finding the Fourth Proportional to 8,215.12, 11,336.68 and 4,489.04

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Solution

The fourth proportional to 8,215.12, 11,336.68 and 4,489.04 is: 6,194.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,215.12 : 11,336.68 = 4,489.04 : x
  2. Step 2: Convert to fraction form
    8,215.12/11,336.68 = 4,489.04/x
  3. Step 3: Cross multiply
    8,215.12x = 11,336.68 × 4,489.04
  4. Step 4: Simplify right side
    8,215.12x = 50,890,809.99
  5. Step 5: Solve for x
    x = 50,890,809.99/8,215.12
  6. Step 6: Final answer
    x = 6,194.77

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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.