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Finding the Fourth Proportional to 8,003.64, 12,005.12 and 2,739.13

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Solution

The fourth proportional to 8,003.64, 12,005.12 and 2,739.13 is: 4,108.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,003.64 : 12,005.12 = 2,739.13 : x
  2. Step 2: Convert to fraction form
    8,003.64/12,005.12 = 2,739.13/x
  3. Step 3: Cross multiply
    8,003.64x = 12,005.12 × 2,739.13
  4. Step 4: Simplify right side
    8,003.64x = 32,883,584.35
  5. Step 5: Solve for x
    x = 32,883,584.35/8,003.64
  6. Step 6: Final answer
    x = 4,108.58

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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.