Home / 7,420-12,474

Finding the Third Proportional to 7,420 and 12,474

Calculator

Solution

The third proportional to 7,420 and 12,474 is: 20,970.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420 : 12,474 = 12,474 : x
  2. Step 2: Convert to fraction form
    7,420/12,474 = 12,474/x
  3. Step 3: Cross multiply
    7,420x = 12,474 × 12,474
  4. Step 4: Simplify right side
    7,420x = 155,600,676
  5. Step 5: Solve for x
    x = 155,600,676/7,420
  6. Step 6: Final answer
    x = 20,970.44

Related Problems

Find third proportional to 3,710 and 6,237
Half scale
Find third proportional to 14,840 and 24,948
Double scale
Find third proportional to 7,422 and 12,477
Similar ratio
Find third proportional to 11,130 and 18,711
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.68) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.