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Finding the Fourth Proportional to 8,760.87, 13,133.49 and 3,212.92

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Solution

The fourth proportional to 8,760.87, 13,133.49 and 3,212.92 is: 4,816.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,760.87 : 13,133.49 = 3,212.92 : x
  2. Step 2: Convert to fraction form
    8,760.87/13,133.49 = 3,212.92/x
  3. Step 3: Cross multiply
    8,760.87x = 13,133.49 × 3,212.92
  4. Step 4: Simplify right side
    8,760.87x = 42,196,770.96
  5. Step 5: Solve for x
    x = 42,196,770.96/8,760.87
  6. Step 6: Final answer
    x = 4,816.50

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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.