Home / 11,905.08-17,863.69-4,890.48

Finding the Fourth Proportional to 11,905.08, 17,863.69 and 4,890.48

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Solution

The fourth proportional to 11,905.08, 17,863.69 and 4,890.48 is: 7,338.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,905.08 : 17,863.69 = 4,890.48 : x
  2. Step 2: Convert to fraction form
    11,905.08/17,863.69 = 4,890.48/x
  3. Step 3: Cross multiply
    11,905.08x = 17,863.69 × 4,890.48
  4. Step 4: Simplify right side
    11,905.08x = 87,362,018.67
  5. Step 5: Solve for x
    x = 87,362,018.67/11,905.08
  6. Step 6: Final answer
    x = 7,338.21

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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.