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Finding the Fourth Proportional to 8,213.63, 11,334.80 and 4,487.63

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Solution

The fourth proportional to 8,213.63, 11,334.80 and 4,487.63 is: 6,192.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,213.63 : 11,334.80 = 4,487.63 : x
  2. Step 2: Convert to fraction form
    8,213.63/11,334.80 = 4,487.63/x
  3. Step 3: Cross multiply
    8,213.63x = 11,334.80 × 4,487.63
  4. Step 4: Simplify right side
    8,213.63x = 50,866,343.07
  5. Step 5: Solve for x
    x = 50,866,343.07/8,213.63
  6. Step 6: Final answer
    x = 6,192.92

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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.