Home / 11,745.27-16,208.61-6,439.98

Finding the Fourth Proportional to 11,745.27, 16,208.61 and 6,439.98

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Solution

The fourth proportional to 11,745.27, 16,208.61 and 6,439.98 is: 8,887.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,745.27 : 16,208.61 = 6,439.98 : x
  2. Step 2: Convert to fraction form
    11,745.27/16,208.61 = 6,439.98/x
  3. Step 3: Cross multiply
    11,745.27x = 16,208.61 × 6,439.98
  4. Step 4: Simplify right side
    11,745.27x = 104,383,124.23
  5. Step 5: Solve for x
    x = 104,383,124.23/11,745.27
  6. Step 6: Final answer
    x = 8,887.25

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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.