Home / 8,970-13,659

Finding the Third Proportional to 8,970 and 13,659

Calculator

Solution

The third proportional to 8,970 and 13,659 is: 20,799.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,970 : 13,659 = 13,659 : x
  2. Step 2: Convert to fraction form
    8,970/13,659 = 13,659/x
  3. Step 3: Cross multiply
    8,970x = 13,659 × 13,659
  4. Step 4: Simplify right side
    8,970x = 186,568,281
  5. Step 5: Solve for x
    x = 186,568,281/8,970
  6. Step 6: Final answer
    x = 20,799.14

Related Problems

Find third proportional to 4,485 and 6,829.50
Half scale
Find third proportional to 17,940 and 27,318
Double scale
Find third proportional to 8,972 and 13,662
Similar ratio
Find third proportional to 13,455 and 20,488.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.