Home / 11,684.90-16,125-6,379.60

Finding the Fourth Proportional to 11,684.90, 16,125 and 6,379.60

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Solution

The fourth proportional to 11,684.90, 16,125 and 6,379.60 is: 8,803.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,684.90 : 16,125 = 6,379.60 : x
  2. Step 2: Convert to fraction form
    11,684.90/16,125 = 6,379.60/x
  3. Step 3: Cross multiply
    11,684.90x = 16,125 × 6,379.60
  4. Step 4: Simplify right side
    11,684.90x = 102,871,050
  5. Step 5: Solve for x
    x = 102,871,050/11,684.90
  6. Step 6: Final answer
    x = 8,803.76

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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.