Home / 8,811.57-13,217.37-2,972.28

Finding the Fourth Proportional to 8,811.57, 13,217.37 and 2,972.28

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Solution

The fourth proportional to 8,811.57, 13,217.37 and 2,972.28 is: 4,458.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,811.57 : 13,217.37 = 2,972.28 : x
  2. Step 2: Convert to fraction form
    8,811.57/13,217.37 = 2,972.28/x
  3. Step 3: Cross multiply
    8,811.57x = 13,217.37 × 2,972.28
  4. Step 4: Simplify right side
    8,811.57x = 39,285,724.50
  5. Step 5: Solve for x
    x = 39,285,724.50/8,811.57
  6. Step 6: Final answer
    x = 4,458.43

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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.