Home / 8,820-13,660

Finding the Third Proportional to 8,820 and 13,660

Calculator

Solution

The third proportional to 8,820 and 13,660 is: 21,155.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,820 : 13,660 = 13,660 : x
  2. Step 2: Convert to fraction form
    8,820/13,660 = 13,660/x
  3. Step 3: Cross multiply
    8,820x = 13,660 × 13,660
  4. Step 4: Simplify right side
    8,820x = 186,595,600
  5. Step 5: Solve for x
    x = 186,595,600/8,820
  6. Step 6: Final answer
    x = 21,155.96

Related Problems

Find third proportional to 4,410 and 6,830
Half scale
Find third proportional to 17,640 and 27,320
Double scale
Find third proportional to 8,822 and 13,663
Similar ratio
Find third proportional to 13,230 and 20,490
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.