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Finding the Fourth Proportional to 13,879.82, 19,160.48 and 8,850.94

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Solution

The fourth proportional to 13,879.82, 19,160.48 and 8,850.94 is: 12,218.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,879.82 : 19,160.48 = 8,850.94 : x
  2. Step 2: Convert to fraction form
    13,879.82/19,160.48 = 8,850.94/x
  3. Step 3: Cross multiply
    13,879.82x = 19,160.48 × 8,850.94
  4. Step 4: Simplify right side
    13,879.82x = 169,588,233.08
  5. Step 5: Solve for x
    x = 169,588,233.08/13,879.82
  6. Step 6: Final answer
    x = 12,218.33

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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.