Home / 11,550.09-15,940.19-6,446.49

Finding the Fourth Proportional to 11,550.09, 15,940.19 and 6,446.49

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Solution

The fourth proportional to 11,550.09, 15,940.19 and 6,446.49 is: 8,896.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,550.09 : 15,940.19 = 6,446.49 : x
  2. Step 2: Convert to fraction form
    11,550.09/15,940.19 = 6,446.49/x
  3. Step 3: Cross multiply
    11,550.09x = 15,940.19 × 6,446.49
  4. Step 4: Simplify right side
    11,550.09x = 102,758,231.77
  5. Step 5: Solve for x
    x = 102,758,231.77/11,550.09
  6. Step 6: Final answer
    x = 8,896.74

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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.