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Finding the Fourth Proportional to 6,361.09, 8,776.83 and 5,520.31

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Solution

The fourth proportional to 6,361.09, 8,776.83 and 5,520.31 is: 7,616.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,361.09 : 8,776.83 = 5,520.31 : x
  2. Step 2: Convert to fraction form
    6,361.09/8,776.83 = 5,520.31/x
  3. Step 3: Cross multiply
    6,361.09x = 8,776.83 × 5,520.31
  4. Step 4: Simplify right side
    6,361.09x = 48,450,822.42
  5. Step 5: Solve for x
    x = 48,450,822.42/6,361.09
  6. Step 6: Final answer
    x = 7,616.75

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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.