Home / 11,408.09-17,100.48-7,710.68

Finding the Fourth Proportional to 11,408.09, 17,100.48 and 7,710.68

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Solution

The fourth proportional to 11,408.09, 17,100.48 and 7,710.68 is: 11,558.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,408.09 : 17,100.48 = 7,710.68 : x
  2. Step 2: Convert to fraction form
    11,408.09/17,100.48 = 7,710.68/x
  3. Step 3: Cross multiply
    11,408.09x = 17,100.48 × 7,710.68
  4. Step 4: Simplify right side
    11,408.09x = 131,856,371.88
  5. Step 5: Solve for x
    x = 131,856,371.88/11,408.09
  6. Step 6: Final answer
    x = 11,558.15

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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.