Home / 11,993.11-16,554.68-7,755.19

Finding the Fourth Proportional to 11,993.11, 16,554.68 and 7,755.19

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Solution

The fourth proportional to 11,993.11, 16,554.68 and 7,755.19 is: 10,704.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,993.11 : 16,554.68 = 7,755.19 : x
  2. Step 2: Convert to fraction form
    11,993.11/16,554.68 = 7,755.19/x
  3. Step 3: Cross multiply
    11,993.11x = 16,554.68 × 7,755.19
  4. Step 4: Simplify right side
    11,993.11x = 128,384,730.83
  5. Step 5: Solve for x
    x = 128,384,730.83/11,993.11
  6. Step 6: Final answer
    x = 10,704.87

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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.