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Finding the Fourth Proportional to 8,256.55, 12,384.84 and 3,511.48

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Solution

The fourth proportional to 8,256.55, 12,384.84 and 3,511.48 is: 5,267.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,256.55 : 12,384.84 = 3,511.48 : x
  2. Step 2: Convert to fraction form
    8,256.55/12,384.84 = 3,511.48/x
  3. Step 3: Cross multiply
    8,256.55x = 12,384.84 × 3,511.48
  4. Step 4: Simplify right side
    8,256.55x = 43,489,142.24
  5. Step 5: Solve for x
    x = 43,489,142.24/8,256.55
  6. Step 6: Final answer
    x = 5,267.23

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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.