Home / 6,520-10,878

Finding the Third Proportional to 6,520 and 10,878

Calculator

Solution

The third proportional to 6,520 and 10,878 is: 18,148.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,520 : 10,878 = 10,878 : x
  2. Step 2: Convert to fraction form
    6,520/10,878 = 10,878/x
  3. Step 3: Cross multiply
    6,520x = 10,878 × 10,878
  4. Step 4: Simplify right side
    6,520x = 118,330,884
  5. Step 5: Solve for x
    x = 118,330,884/6,520
  6. Step 6: Final answer
    x = 18,148.91

Related Problems

Find third proportional to 3,260 and 5,439
Half scale
Find third proportional to 13,040 and 21,756
Double scale
Find third proportional to 6,522 and 10,881
Similar ratio
Find third proportional to 9,780 and 16,317
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.