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Finding the Fourth Proportional to 8,820.39, 13,234.63 and 3,824.28

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Solution

The fourth proportional to 8,820.39, 13,234.63 and 3,824.28 is: 5,738.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,820.39 : 13,234.63 = 3,824.28 : x
  2. Step 2: Convert to fraction form
    8,820.39/13,234.63 = 3,824.28/x
  3. Step 3: Cross multiply
    8,820.39x = 13,234.63 × 3,824.28
  4. Step 4: Simplify right side
    8,820.39x = 50,612,911.70
  5. Step 5: Solve for x
    x = 50,612,911.70/8,820.39
  6. Step 6: Final answer
    x = 5,738.17

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1.5x scale

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.