Home / 6,718-8,790

Finding the Third Proportional to 6,718 and 8,790

Calculator

Solution

The third proportional to 6,718 and 8,790 is: 11,501.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,718 : 8,790 = 8,790 : x
  2. Step 2: Convert to fraction form
    6,718/8,790 = 8,790/x
  3. Step 3: Cross multiply
    6,718x = 8,790 × 8,790
  4. Step 4: Simplify right side
    6,718x = 77,264,100
  5. Step 5: Solve for x
    x = 77,264,100/6,718
  6. Step 6: Final answer
    x = 11,501.06

Related Problems

Find third proportional to 3,359 and 4,395
Half scale
Find third proportional to 13,436 and 17,580
Double scale
Find third proportional to 6,720 and 8,793
Similar ratio
Find third proportional to 10,077 and 13,185
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.