Home / 8,207-17,989

Finding the Third Proportional to 8,207 and 17,989

Calculator

Solution

The third proportional to 8,207 and 17,989 is: 39,430.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,207 : 17,989 = 17,989 : x
  2. Step 2: Convert to fraction form
    8,207/17,989 = 17,989/x
  3. Step 3: Cross multiply
    8,207x = 17,989 × 17,989
  4. Step 4: Simplify right side
    8,207x = 323,604,121
  5. Step 5: Solve for x
    x = 323,604,121/8,207
  6. Step 6: Final answer
    x = 39,430.26

Related Problems

Find third proportional to 4,103.50 and 8,994.50
Half scale
Find third proportional to 16,414 and 35,978
Double scale
Find third proportional to 8,209 and 17,993
Similar ratio
Find third proportional to 12,310.50 and 26,983.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.