Home / 12,438-18,413

Finding the Third Proportional to 12,438 and 18,413

Calculator

Solution

The third proportional to 12,438 and 18,413 is: 27,258.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,438 : 18,413 = 18,413 : x
  2. Step 2: Convert to fraction form
    12,438/18,413 = 18,413/x
  3. Step 3: Cross multiply
    12,438x = 18,413 × 18,413
  4. Step 4: Simplify right side
    12,438x = 339,038,569
  5. Step 5: Solve for x
    x = 339,038,569/12,438
  6. Step 6: Final answer
    x = 27,258.29

Related Problems

Find third proportional to 6,219 and 9,206.50
Half scale
Find third proportional to 24,876 and 36,826
Double scale
Find third proportional to 12,440 and 18,416
Similar ratio
Find third proportional to 18,657 and 27,619.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.