Home / 28,794-43,191-12,378

Finding the Fourth Proportional to 28,794, 43,191 and 12,378

Calculator

Solution

The fourth proportional to 28,794, 43,191 and 12,378 is: 18,567

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,794 : 43,191 = 12,378 : x
  2. Step 2: Convert to fraction form
    28,794/43,191 = 12,378/x
  3. Step 3: Cross multiply
    28,794x = 43,191 × 12,378
  4. Step 4: Simplify right side
    28,794x = 534,618,198
  5. Step 5: Solve for x
    x = 534,618,198/28,794
  6. Step 6: Final answer
    x = 18,567

Related Problems

Find fourth proportional to 14,397, 21,595.50 and 6,189
Half scale
Find fourth proportional to 57,588, 86,382 and 24,756
Double scale
Find fourth proportional to 28,795, 43,192.50 and 12,379
Similar ratio
Find fourth proportional to 43,191, 64,786.50 and 18,567
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.