Home / 8,658-9,938

Finding the Third Proportional to 8,658 and 9,938

Calculator

Solution

The third proportional to 8,658 and 9,938 is: 11,407.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,658 : 9,938 = 9,938 : x
  2. Step 2: Convert to fraction form
    8,658/9,938 = 9,938/x
  3. Step 3: Cross multiply
    8,658x = 9,938 × 9,938
  4. Step 4: Simplify right side
    8,658x = 98,763,844
  5. Step 5: Solve for x
    x = 98,763,844/8,658
  6. Step 6: Final answer
    x = 11,407.24

Related Problems

Find third proportional to 4,329 and 4,969
Half scale
Find third proportional to 17,316 and 19,876
Double scale
Find third proportional to 8,660 and 9,940
Similar ratio
Find third proportional to 12,987 and 14,907
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.