Home / 8,728-12,612

Finding the Third Proportional to 8,728 and 12,612

Calculator

Solution

The third proportional to 8,728 and 12,612 is: 18,224.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,728 : 12,612 = 12,612 : x
  2. Step 2: Convert to fraction form
    8,728/12,612 = 12,612/x
  3. Step 3: Cross multiply
    8,728x = 12,612 × 12,612
  4. Step 4: Simplify right side
    8,728x = 159,062,544
  5. Step 5: Solve for x
    x = 159,062,544/8,728
  6. Step 6: Final answer
    x = 18,224.40

Related Problems

Find third proportional to 4,364 and 6,306
Half scale
Find third proportional to 17,456 and 25,224
Double scale
Find third proportional to 8,730 and 12,615
Similar ratio
Find third proportional to 13,092 and 18,918
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.