Home / 11,664.56-17,478.57-4,640.78

Finding the Fourth Proportional to 11,664.56, 17,478.57 and 4,640.78

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Solution

The fourth proportional to 11,664.56, 17,478.57 and 4,640.78 is: 6,953.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,664.56 : 17,478.57 = 4,640.78 : x
  2. Step 2: Convert to fraction form
    11,664.56/17,478.57 = 4,640.78/x
  3. Step 3: Cross multiply
    11,664.56x = 17,478.57 × 4,640.78
  4. Step 4: Simplify right side
    11,664.56x = 81,114,198.08
  5. Step 5: Solve for x
    x = 81,114,198.08/11,664.56
  6. Step 6: Final answer
    x = 6,953.90

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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.