Home / 9,690-20,784

Finding the Third Proportional to 9,690 and 20,784

Calculator

Solution

The third proportional to 9,690 and 20,784 is: 44,579.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,690 : 20,784 = 20,784 : x
  2. Step 2: Convert to fraction form
    9,690/20,784 = 20,784/x
  3. Step 3: Cross multiply
    9,690x = 20,784 × 20,784
  4. Step 4: Simplify right side
    9,690x = 431,974,656
  5. Step 5: Solve for x
    x = 431,974,656/9,690
  6. Step 6: Final answer
    x = 44,579.43

Related Problems

Find third proportional to 4,845 and 10,392
Half scale
Find third proportional to 19,380 and 41,568
Double scale
Find third proportional to 9,692 and 20,788
Similar ratio
Find third proportional to 14,535 and 31,176
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.