Home / 11,684.72-16,125.25-6,379.88

Finding the Fourth Proportional to 11,684.72, 16,125.25 and 6,379.88

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Solution

The fourth proportional to 11,684.72, 16,125.25 and 6,379.88 is: 8,804.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,684.72 : 16,125.25 = 6,379.88 : x
  2. Step 2: Convert to fraction form
    11,684.72/16,125.25 = 6,379.88/x
  3. Step 3: Cross multiply
    11,684.72x = 16,125.25 × 6,379.88
  4. Step 4: Simplify right side
    11,684.72x = 102,877,159.97
  5. Step 5: Solve for x
    x = 102,877,159.97/11,684.72
  6. Step 6: Final answer
    x = 8,804.42

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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.