Home / 8,756-13,178

Finding the Third Proportional to 8,756 and 13,178

Calculator

Solution

The third proportional to 8,756 and 13,178 is: 19,833.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,756 : 13,178 = 13,178 : x
  2. Step 2: Convert to fraction form
    8,756/13,178 = 13,178/x
  3. Step 3: Cross multiply
    8,756x = 13,178 × 13,178
  4. Step 4: Simplify right side
    8,756x = 173,659,684
  5. Step 5: Solve for x
    x = 173,659,684/8,756
  6. Step 6: Final answer
    x = 19,833.22

Related Problems

Find third proportional to 4,378 and 6,589
Half scale
Find third proportional to 17,512 and 26,356
Double scale
Find third proportional to 8,758 and 13,181
Similar ratio
Find third proportional to 13,134 and 19,767
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.