Home / 7,158-8,238

Finding the Third Proportional to 7,158 and 8,238

Calculator

Solution

The third proportional to 7,158 and 8,238 is: 9,480.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,158 : 8,238 = 8,238 : x
  2. Step 2: Convert to fraction form
    7,158/8,238 = 8,238/x
  3. Step 3: Cross multiply
    7,158x = 8,238 × 8,238
  4. Step 4: Simplify right side
    7,158x = 67,864,644
  5. Step 5: Solve for x
    x = 67,864,644/7,158
  6. Step 6: Final answer
    x = 9,480.95

Related Problems

Find third proportional to 3,579 and 4,119
Half scale
Find third proportional to 14,316 and 16,476
Double scale
Find third proportional to 7,160 and 8,240
Similar ratio
Find third proportional to 10,737 and 12,357
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.