Home / 11,313.89-16,971.54-3,917.36

Finding the Fourth Proportional to 11,313.89, 16,971.54 and 3,917.36

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Solution

The fourth proportional to 11,313.89, 16,971.54 and 3,917.36 is: 5,876.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,313.89 : 16,971.54 = 3,917.36 : x
  2. Step 2: Convert to fraction form
    11,313.89/16,971.54 = 3,917.36/x
  3. Step 3: Cross multiply
    11,313.89x = 16,971.54 × 3,917.36
  4. Step 4: Simplify right side
    11,313.89x = 66,483,631.93
  5. Step 5: Solve for x
    x = 66,483,631.93/11,313.89
  6. Step 6: Final answer
    x = 5,876.28

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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.