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Finding the Fourth Proportional to 9,003.75, 13,507.79 and 2,847.75

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Solution

The fourth proportional to 9,003.75, 13,507.79 and 2,847.75 is: 4,272.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,003.75 : 13,507.79 = 2,847.75 : x
  2. Step 2: Convert to fraction form
    9,003.75/13,507.79 = 2,847.75/x
  3. Step 3: Cross multiply
    9,003.75x = 13,507.79 × 2,847.75
  4. Step 4: Simplify right side
    9,003.75x = 38,466,794.73
  5. Step 5: Solve for x
    x = 38,466,794.73/9,003.75
  6. Step 6: Final answer
    x = 4,272.31

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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.