Home / 11,664.20-16,111.96-8,645.44

Finding the Fourth Proportional to 11,664.20, 16,111.96 and 8,645.44

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Solution

The fourth proportional to 11,664.20, 16,111.96 and 8,645.44 is: 11,942.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,664.20 : 16,111.96 = 8,645.44 : x
  2. Step 2: Convert to fraction form
    11,664.20/16,111.96 = 8,645.44/x
  3. Step 3: Cross multiply
    11,664.20x = 16,111.96 × 8,645.44
  4. Step 4: Simplify right side
    11,664.20x = 139,294,983.46
  5. Step 5: Solve for x
    x = 139,294,983.46/11,664.20
  6. Step 6: Final answer
    x = 11,942.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.