Home / 5,391-12,465

Finding the Third Proportional to 5,391 and 12,465

Calculator

Solution

The third proportional to 5,391 and 12,465 is: 28,821.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,391 : 12,465 = 12,465 : x
  2. Step 2: Convert to fraction form
    5,391/12,465 = 12,465/x
  3. Step 3: Cross multiply
    5,391x = 12,465 × 12,465
  4. Step 4: Simplify right side
    5,391x = 155,376,225
  5. Step 5: Solve for x
    x = 155,376,225/5,391
  6. Step 6: Final answer
    x = 28,821.41

Related Problems

Find third proportional to 2,695.50 and 6,232.50
Half scale
Find third proportional to 10,782 and 24,930
Double scale
Find third proportional to 5,393 and 12,470
Similar ratio
Find third proportional to 8,086.50 and 18,697.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.