Home / 11,952.05-16,493.13-6,645.80

Finding the Fourth Proportional to 11,952.05, 16,493.13 and 6,645.80

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Solution

The fourth proportional to 11,952.05, 16,493.13 and 6,645.80 is: 9,170.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,952.05 : 16,493.13 = 6,645.80 : x
  2. Step 2: Convert to fraction form
    11,952.05/16,493.13 = 6,645.80/x
  3. Step 3: Cross multiply
    11,952.05x = 16,493.13 × 6,645.80
  4. Step 4: Simplify right side
    11,952.05x = 109,609,960.89
  5. Step 5: Solve for x
    x = 109,609,960.89/11,952.05
  6. Step 6: Final answer
    x = 9,170.81

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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.