Home / 7,729-12,282

Finding the Third Proportional to 7,729 and 12,282

Calculator

Solution

The third proportional to 7,729 and 12,282 is: 19,517.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,729 : 12,282 = 12,282 : x
  2. Step 2: Convert to fraction form
    7,729/12,282 = 12,282/x
  3. Step 3: Cross multiply
    7,729x = 12,282 × 12,282
  4. Step 4: Simplify right side
    7,729x = 150,847,524
  5. Step 5: Solve for x
    x = 150,847,524/7,729
  6. Step 6: Final answer
    x = 19,517.08

Related Problems

Find third proportional to 3,864.50 and 6,141
Half scale
Find third proportional to 15,458 and 24,564
Double scale
Find third proportional to 7,731 and 12,285
Similar ratio
Find third proportional to 11,593.50 and 18,423
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.