Home / 7,888-12,381

Finding the Third Proportional to 7,888 and 12,381

Calculator

Solution

The third proportional to 7,888 and 12,381 is: 19,433.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,888 : 12,381 = 12,381 : x
  2. Step 2: Convert to fraction form
    7,888/12,381 = 12,381/x
  3. Step 3: Cross multiply
    7,888x = 12,381 × 12,381
  4. Step 4: Simplify right side
    7,888x = 153,289,161
  5. Step 5: Solve for x
    x = 153,289,161/7,888
  6. Step 6: Final answer
    x = 19,433.21

Related Problems

Find third proportional to 3,944 and 6,190.50
Half scale
Find third proportional to 15,776 and 24,762
Double scale
Find third proportional to 7,890 and 12,384
Similar ratio
Find third proportional to 11,832 and 18,571.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.