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Finding the Fourth Proportional to 8,199.64, 11,315.62 and 4,473.64

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Solution

The fourth proportional to 8,199.64, 11,315.62 and 4,473.64 is: 6,173.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,199.64 : 11,315.62 = 4,473.64 : x
  2. Step 2: Convert to fraction form
    8,199.64/11,315.62 = 4,473.64/x
  3. Step 3: Cross multiply
    8,199.64x = 11,315.62 × 4,473.64
  4. Step 4: Simplify right side
    8,199.64x = 50,622,010.26
  5. Step 5: Solve for x
    x = 50,622,010.26/8,199.64
  6. Step 6: Final answer
    x = 6,173.69

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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.