Home / 7,518-11,178

Finding the Third Proportional to 7,518 and 11,178

Calculator

Solution

The third proportional to 7,518 and 11,178 is: 16,619.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,518 : 11,178 = 11,178 : x
  2. Step 2: Convert to fraction form
    7,518/11,178 = 11,178/x
  3. Step 3: Cross multiply
    7,518x = 11,178 × 11,178
  4. Step 4: Simplify right side
    7,518x = 124,947,684
  5. Step 5: Solve for x
    x = 124,947,684/7,518
  6. Step 6: Final answer
    x = 16,619.80

Related Problems

Find third proportional to 3,759 and 5,589
Half scale
Find third proportional to 15,036 and 22,356
Double scale
Find third proportional to 7,520 and 11,181
Similar ratio
Find third proportional to 11,277 and 16,767
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.