Home / 7,290-11,340

Finding the Third Proportional to 7,290 and 11,340

Calculator

Solution

The third proportional to 7,290 and 11,340 is: 17,640

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,290 : 11,340 = 11,340 : x
  2. Step 2: Convert to fraction form
    7,290/11,340 = 11,340/x
  3. Step 3: Cross multiply
    7,290x = 11,340 × 11,340
  4. Step 4: Simplify right side
    7,290x = 128,595,600
  5. Step 5: Solve for x
    x = 128,595,600/7,290
  6. Step 6: Final answer
    x = 17,640

Related Problems

Find third proportional to 3,645 and 5,670
Half scale
Find third proportional to 14,580 and 22,680
Double scale
Find third proportional to 7,292 and 11,343
Similar ratio
Find third proportional to 10,935 and 17,010
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.