Home / 6,916-8,131

Finding the Third Proportional to 6,916 and 8,131

Calculator

Solution

The third proportional to 6,916 and 8,131 is: 9,559.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,916 : 8,131 = 8,131 : x
  2. Step 2: Convert to fraction form
    6,916/8,131 = 8,131/x
  3. Step 3: Cross multiply
    6,916x = 8,131 × 8,131
  4. Step 4: Simplify right side
    6,916x = 66,113,161
  5. Step 5: Solve for x
    x = 66,113,161/6,916
  6. Step 6: Final answer
    x = 9,559.45

Related Problems

Find third proportional to 3,458 and 4,065.50
Half scale
Find third proportional to 13,832 and 16,262
Double scale
Find third proportional to 6,918 and 8,133
Similar ratio
Find third proportional to 10,374 and 12,196.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.