Home / 11,914.79-16,443.41-6,609.51

Finding the Fourth Proportional to 11,914.79, 16,443.41 and 6,609.51

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Solution

The fourth proportional to 11,914.79, 16,443.41 and 6,609.51 is: 9,121.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,914.79 : 16,443.41 = 6,609.51 : x
  2. Step 2: Convert to fraction form
    11,914.79/16,443.41 = 6,609.51/x
  3. Step 3: Cross multiply
    11,914.79x = 16,443.41 × 6,609.51
  4. Step 4: Simplify right side
    11,914.79x = 108,682,849.78
  5. Step 5: Solve for x
    x = 108,682,849.78/11,914.79
  6. Step 6: Final answer
    x = 9,121.68

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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.