Home / 8,678-13,798

Finding the Third Proportional to 8,678 and 13,798

Calculator

Solution

The third proportional to 8,678 and 13,798 is: 21,938.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,678 : 13,798 = 13,798 : x
  2. Step 2: Convert to fraction form
    8,678/13,798 = 13,798/x
  3. Step 3: Cross multiply
    8,678x = 13,798 × 13,798
  4. Step 4: Simplify right side
    8,678x = 190,384,804
  5. Step 5: Solve for x
    x = 190,384,804/8,678
  6. Step 6: Final answer
    x = 21,938.79

Related Problems

Find third proportional to 4,339 and 6,899
Half scale
Find third proportional to 17,356 and 27,596
Double scale
Find third proportional to 8,680 and 13,801
Similar ratio
Find third proportional to 13,017 and 20,697
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.