Home / 11,891.22-16,409.85-6,855.42

Finding the Fourth Proportional to 11,891.22, 16,409.85 and 6,855.42

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Solution

The fourth proportional to 11,891.22, 16,409.85 and 6,855.42 is: 9,460.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,891.22 : 16,409.85 = 6,855.42 : x
  2. Step 2: Convert to fraction form
    11,891.22/16,409.85 = 6,855.42/x
  3. Step 3: Cross multiply
    11,891.22x = 16,409.85 × 6,855.42
  4. Step 4: Simplify right side
    11,891.22x = 112,496,379.61
  5. Step 5: Solve for x
    x = 112,496,379.61/11,891.22
  6. Step 6: Final answer
    x = 9,460.46

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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.