Home / 12,474-18,129

Finding the Third Proportional to 12,474 and 18,129

Calculator

Solution

The third proportional to 12,474 and 18,129 is: 26,347.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,474 : 18,129 = 18,129 : x
  2. Step 2: Convert to fraction form
    12,474/18,129 = 18,129/x
  3. Step 3: Cross multiply
    12,474x = 18,129 × 18,129
  4. Step 4: Simplify right side
    12,474x = 328,660,641
  5. Step 5: Solve for x
    x = 328,660,641/12,474
  6. Step 6: Final answer
    x = 26,347.65

Related Problems

Find third proportional to 6,237 and 9,064.50
Half scale
Find third proportional to 24,948 and 36,258
Double scale
Find third proportional to 12,476 and 18,132
Similar ratio
Find third proportional to 18,711 and 27,193.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.