Home / 11,745.09-16,208.21-6,440.25

Finding the Fourth Proportional to 11,745.09, 16,208.21 and 6,440.25

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Solution

The fourth proportional to 11,745.09, 16,208.21 and 6,440.25 is: 8,887.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,745.09 : 16,208.21 = 6,440.25 : x
  2. Step 2: Convert to fraction form
    11,745.09/16,208.21 = 6,440.25/x
  3. Step 3: Cross multiply
    11,745.09x = 16,208.21 × 6,440.25
  4. Step 4: Simplify right side
    11,745.09x = 104,384,924.45
  5. Step 5: Solve for x
    x = 104,384,924.45/11,745.09
  6. Step 6: Final answer
    x = 8,887.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.