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Finding the Fourth Proportional to 8,871.81, 13,285.85 and 5,576.73

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Solution

The fourth proportional to 8,871.81, 13,285.85 and 5,576.73 is: 8,351.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,871.81 : 13,285.85 = 5,576.73 : x
  2. Step 2: Convert to fraction form
    8,871.81/13,285.85 = 5,576.73/x
  3. Step 3: Cross multiply
    8,871.81x = 13,285.85 × 5,576.73
  4. Step 4: Simplify right side
    8,871.81x = 74,091,570.39
  5. Step 5: Solve for x
    x = 74,091,570.39/8,871.81
  6. Step 6: Final answer
    x = 8,351.35

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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.