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Finding the Fourth Proportional to 8,871.56, 13,285.47 and 5,576.48

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Solution

The fourth proportional to 8,871.56, 13,285.47 and 5,576.48 is: 8,350.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,871.56 : 13,285.47 = 5,576.48 : x
  2. Step 2: Convert to fraction form
    8,871.56/13,285.47 = 5,576.48/x
  3. Step 3: Cross multiply
    8,871.56x = 13,285.47 × 5,576.48
  4. Step 4: Simplify right side
    8,871.56x = 74,086,157.75
  5. Step 5: Solve for x
    x = 74,086,157.75/8,871.56
  6. Step 6: Final answer
    x = 8,350.97

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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.