Home / 7,270-8,278

Finding the Third Proportional to 7,270 and 8,278

Calculator

Solution

The third proportional to 7,270 and 8,278 is: 9,425.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,270 : 8,278 = 8,278 : x
  2. Step 2: Convert to fraction form
    7,270/8,278 = 8,278/x
  3. Step 3: Cross multiply
    7,270x = 8,278 × 8,278
  4. Step 4: Simplify right side
    7,270x = 68,525,284
  5. Step 5: Solve for x
    x = 68,525,284/7,270
  6. Step 6: Final answer
    x = 9,425.76

Related Problems

Find third proportional to 3,635 and 4,139
Half scale
Find third proportional to 14,540 and 16,556
Double scale
Find third proportional to 7,272 and 8,280
Similar ratio
Find third proportional to 10,905 and 12,417
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.