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Finding the Fourth Proportional to 6,365.43, 8,784.65 and 3,847.53

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Solution

The fourth proportional to 6,365.43, 8,784.65 and 3,847.53 is: 5,309.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,365.43 : 8,784.65 = 3,847.53 : x
  2. Step 2: Convert to fraction form
    6,365.43/8,784.65 = 3,847.53/x
  3. Step 3: Cross multiply
    6,365.43x = 8,784.65 × 3,847.53
  4. Step 4: Simplify right side
    6,365.43x = 33,799,185.18
  5. Step 5: Solve for x
    x = 33,799,185.18/6,365.43
  6. Step 6: Final answer
    x = 5,309.80

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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.