Home / 11,409.66-17,114.36-3,618.54

Finding the Fourth Proportional to 11,409.66, 17,114.36 and 3,618.54

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Solution

The fourth proportional to 11,409.66, 17,114.36 and 3,618.54 is: 5,427.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,409.66 : 17,114.36 = 3,618.54 : x
  2. Step 2: Convert to fraction form
    11,409.66/17,114.36 = 3,618.54/x
  3. Step 3: Cross multiply
    11,409.66x = 17,114.36 × 3,618.54
  4. Step 4: Simplify right side
    11,409.66x = 61,928,978.14
  5. Step 5: Solve for x
    x = 61,928,978.14/11,409.66
  6. Step 6: Final answer
    x = 5,427.77

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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.