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Finding the Fourth Proportional to 8,213.50, 11,334.63 and 4,487.50

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Solution

The fourth proportional to 8,213.50, 11,334.63 and 4,487.50 is: 6,192.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,213.50 : 11,334.63 = 4,487.50 : x
  2. Step 2: Convert to fraction form
    8,213.50/11,334.63 = 4,487.50/x
  3. Step 3: Cross multiply
    8,213.50x = 11,334.63 × 4,487.50
  4. Step 4: Simplify right side
    8,213.50x = 50,864,152.13
  5. Step 5: Solve for x
    x = 50,864,152.13/8,213.50
  6. Step 6: Final answer
    x = 6,192.75

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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.