Home / 11,918.45-17,883.75-4,903.85

Finding the Fourth Proportional to 11,918.45, 17,883.75 and 4,903.85

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Solution

The fourth proportional to 11,918.45, 17,883.75 and 4,903.85 is: 7,358.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918.45 : 17,883.75 = 4,903.85 : x
  2. Step 2: Convert to fraction form
    11,918.45/17,883.75 = 4,903.85/x
  3. Step 3: Cross multiply
    11,918.45x = 17,883.75 × 4,903.85
  4. Step 4: Simplify right side
    11,918.45x = 87,699,227.44
  5. Step 5: Solve for x
    x = 87,699,227.44/11,918.45
  6. Step 6: Final answer
    x = 7,358.27

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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.