Home / 11,684.83-16,124.85-6,379.69

Finding the Fourth Proportional to 11,684.83, 16,124.85 and 6,379.69

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Solution

The fourth proportional to 11,684.83, 16,124.85 and 6,379.69 is: 8,803.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,684.83 : 16,124.85 = 6,379.69 : x
  2. Step 2: Convert to fraction form
    11,684.83/16,124.85 = 6,379.69/x
  3. Step 3: Cross multiply
    11,684.83x = 16,124.85 × 6,379.69
  4. Step 4: Simplify right side
    11,684.83x = 102,871,544.30
  5. Step 5: Solve for x
    x = 102,871,544.30/11,684.83
  6. Step 6: Final answer
    x = 8,803.85

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Half scale
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Double scale
Find fourth proportional to 11,685.83, 16,126.23 and 6,380.69
Similar ratio
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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.