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Finding the Fourth Proportional to 8,199.63, 11,315.62 and 4,473.63

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Solution

The fourth proportional to 8,199.63, 11,315.62 and 4,473.63 is: 6,173.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,199.63 : 11,315.62 = 4,473.63 : x
  2. Step 2: Convert to fraction form
    8,199.63/11,315.62 = 4,473.63/x
  3. Step 3: Cross multiply
    8,199.63x = 11,315.62 × 4,473.63
  4. Step 4: Simplify right side
    8,199.63x = 50,621,897.10
  5. Step 5: Solve for x
    x = 50,621,897.10/8,199.63
  6. Step 6: Final answer
    x = 6,173.68

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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.