Home / 8,379-11,379

Finding the Third Proportional to 8,379 and 11,379

Calculator

Solution

The third proportional to 8,379 and 11,379 is: 15,453.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,379 : 11,379 = 11,379 : x
  2. Step 2: Convert to fraction form
    8,379/11,379 = 11,379/x
  3. Step 3: Cross multiply
    8,379x = 11,379 × 11,379
  4. Step 4: Simplify right side
    8,379x = 129,481,641
  5. Step 5: Solve for x
    x = 129,481,641/8,379
  6. Step 6: Final answer
    x = 15,453.11

Related Problems

Find third proportional to 4,189.50 and 5,689.50
Half scale
Find third proportional to 16,758 and 22,758
Double scale
Find third proportional to 8,381 and 11,382
Similar ratio
Find third proportional to 12,568.50 and 17,068.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.