Home / 8,711.50-12,862

Finding the Third Proportional to 8,711.50 and 12,862

Calculator

Solution

The third proportional to 8,711.50 and 12,862 is: 18,989.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,711.50 : 12,862 = 12,862 : x
  2. Step 2: Convert to fraction form
    8,711.50/12,862 = 12,862/x
  3. Step 3: Cross multiply
    8,711.50x = 12,862 × 12,862
  4. Step 4: Simplify right side
    8,711.50x = 165,431,044
  5. Step 5: Solve for x
    x = 165,431,044/8,711.50
  6. Step 6: Final answer
    x = 18,989.96

Related Problems

Find third proportional to 4,355.75 and 6,431
Half scale
Find third proportional to 17,423 and 25,724
Double scale
Find third proportional to 8,714 and 12,865
Similar ratio
Find third proportional to 13,067.25 and 19,293
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.