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Finding the Fourth Proportional to 11,166.08, 16,743.05 and 7,216.79

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Solution

The fourth proportional to 11,166.08, 16,743.05 and 7,216.79 is: 10,821.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,166.08 : 16,743.05 = 7,216.79 : x
  2. Step 2: Convert to fraction form
    11,166.08/16,743.05 = 7,216.79/x
  3. Step 3: Cross multiply
    11,166.08x = 16,743.05 × 7,216.79
  4. Step 4: Simplify right side
    11,166.08x = 120,831,039.73
  5. Step 5: Solve for x
    x = 120,831,039.73/11,166.08
  6. Step 6: Final answer
    x = 10,821.26

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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.