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Finding the Fourth Proportional to 8,100.75, 11,179.04 and 4,374.75

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Solution

The fourth proportional to 8,100.75, 11,179.04 and 4,374.75 is: 6,037.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,100.75 : 11,179.04 = 4,374.75 : x
  2. Step 2: Convert to fraction form
    8,100.75/11,179.04 = 4,374.75/x
  3. Step 3: Cross multiply
    8,100.75x = 11,179.04 × 4,374.75
  4. Step 4: Simplify right side
    8,100.75x = 48,905,483.37
  5. Step 5: Solve for x
    x = 48,905,483.37/8,100.75
  6. Step 6: Final answer
    x = 6,037.16

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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.