Home / 8,766.12-13,142.70-3,216.54

Finding the Fourth Proportional to 8,766.12, 13,142.70 and 3,216.54

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Solution

The fourth proportional to 8,766.12, 13,142.70 and 3,216.54 is: 4,822.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,766.12 : 13,142.70 = 3,216.54 : x
  2. Step 2: Convert to fraction form
    8,766.12/13,142.70 = 3,216.54/x
  3. Step 3: Cross multiply
    8,766.12x = 13,142.70 × 3,216.54
  4. Step 4: Simplify right side
    8,766.12x = 42,274,020.26
  5. Step 5: Solve for x
    x = 42,274,020.26/8,766.12
  6. Step 6: Final answer
    x = 4,822.43

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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.