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Finding the Fourth Proportional to 8,243.43, 12,365.00 and 2,621.07

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Solution

The fourth proportional to 8,243.43, 12,365.00 and 2,621.07 is: 3,931.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,243.43 : 12,365.00 = 2,621.07 : x
  2. Step 2: Convert to fraction form
    8,243.43/12,365.00 = 2,621.07/x
  3. Step 3: Cross multiply
    8,243.43x = 12,365.00 × 2,621.07
  4. Step 4: Simplify right side
    8,243.43x = 32,409,517.44
  5. Step 5: Solve for x
    x = 32,409,517.44/8,243.43
  6. Step 6: Final answer
    x = 3,931.56

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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.