Home / 5,508-8,390

Finding the Third Proportional to 5,508 and 8,390

Calculator

Solution

The third proportional to 5,508 and 8,390 is: 12,779.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,508 : 8,390 = 8,390 : x
  2. Step 2: Convert to fraction form
    5,508/8,390 = 8,390/x
  3. Step 3: Cross multiply
    5,508x = 8,390 × 8,390
  4. Step 4: Simplify right side
    5,508x = 70,392,100
  5. Step 5: Solve for x
    x = 70,392,100/5,508
  6. Step 6: Final answer
    x = 12,779.97

Related Problems

Find third proportional to 2,754 and 4,195
Half scale
Find third proportional to 11,016 and 16,780
Double scale
Find third proportional to 5,510 and 8,393
Similar ratio
Find third proportional to 8,262 and 12,585
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.