Home / 11,971.96-16,521.82-6,666.77

Finding the Fourth Proportional to 11,971.96, 16,521.82 and 6,666.77

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Solution

The fourth proportional to 11,971.96, 16,521.82 and 6,666.77 is: 9,200.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,971.96 : 16,521.82 = 6,666.77 : x
  2. Step 2: Convert to fraction form
    11,971.96/16,521.82 = 6,666.77/x
  3. Step 3: Cross multiply
    11,971.96x = 16,521.82 × 6,666.77
  4. Step 4: Simplify right side
    11,971.96x = 110,147,198.56
  5. Step 5: Solve for x
    x = 110,147,198.56/11,971.96
  6. Step 6: Final answer
    x = 9,200.43

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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.