Home / 11,456.75-17,187.81-3,558.86

Finding the Fourth Proportional to 11,456.75, 17,187.81 and 3,558.86

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Solution

The fourth proportional to 11,456.75, 17,187.81 and 3,558.86 is: 5,339.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,456.75 : 17,187.81 = 3,558.86 : x
  2. Step 2: Convert to fraction form
    11,456.75/17,187.81 = 3,558.86/x
  3. Step 3: Cross multiply
    11,456.75x = 17,187.81 × 3,558.86
  4. Step 4: Simplify right side
    11,456.75x = 61,168,991.70
  5. Step 5: Solve for x
    x = 61,168,991.70/11,456.75
  6. Step 6: Final answer
    x = 5,339.12

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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.