Home / 11,914.80-17,870.73-6,919.92

Finding the Fourth Proportional to 11,914.80, 17,870.73 and 6,919.92

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Solution

The fourth proportional to 11,914.80, 17,870.73 and 6,919.92 is: 10,379.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,914.80 : 17,870.73 = 6,919.92 : x
  2. Step 2: Convert to fraction form
    11,914.80/17,870.73 = 6,919.92/x
  3. Step 3: Cross multiply
    11,914.80x = 17,870.73 × 6,919.92
  4. Step 4: Simplify right side
    11,914.80x = 123,664,021.94
  5. Step 5: Solve for x
    x = 123,664,021.94/11,914.80
  6. Step 6: Final answer
    x = 10,379.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.