Home / 8,766.20-13,137.30-5,636.60

Finding the Fourth Proportional to 8,766.20, 13,137.30 and 5,636.60

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Solution

The fourth proportional to 8,766.20, 13,137.30 and 5,636.60 is: 8,447.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,766.20 : 13,137.30 = 5,636.60 : x
  2. Step 2: Convert to fraction form
    8,766.20/13,137.30 = 5,636.60/x
  3. Step 3: Cross multiply
    8,766.20x = 13,137.30 × 5,636.60
  4. Step 4: Simplify right side
    8,766.20x = 74,049,705.18
  5. Step 5: Solve for x
    x = 74,049,705.18/8,766.20
  6. Step 6: Final answer
    x = 8,447.18

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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.