Home / 8,940-12,579

Finding the Third Proportional to 8,940 and 12,579

Calculator

Solution

The third proportional to 8,940 and 12,579 is: 17,699.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,940 : 12,579 = 12,579 : x
  2. Step 2: Convert to fraction form
    8,940/12,579 = 12,579/x
  3. Step 3: Cross multiply
    8,940x = 12,579 × 12,579
  4. Step 4: Simplify right side
    8,940x = 158,231,241
  5. Step 5: Solve for x
    x = 158,231,241/8,940
  6. Step 6: Final answer
    x = 17,699.24

Related Problems

Find third proportional to 4,470 and 6,289.50
Half scale
Find third proportional to 17,880 and 25,158
Double scale
Find third proportional to 8,942 and 12,582
Similar ratio
Find third proportional to 13,410 and 18,868.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.