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Finding the Fourth Proportional to 6,372.87, 8,772.72 and 5,528.60

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Solution

The fourth proportional to 6,372.87, 8,772.72 and 5,528.60 is: 7,610.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,372.87 : 8,772.72 = 5,528.60 : x
  2. Step 2: Convert to fraction form
    6,372.87/8,772.72 = 5,528.60/x
  3. Step 3: Cross multiply
    6,372.87x = 8,772.72 × 5,528.60
  4. Step 4: Simplify right side
    6,372.87x = 48,500,859.19
  5. Step 5: Solve for x
    x = 48,500,859.19/6,372.87
  6. Step 6: Final answer
    x = 7,610.53

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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.