Home / 7,218-15,660

Finding the Third Proportional to 7,218 and 15,660

Calculator

Solution

The third proportional to 7,218 and 15,660 is: 33,975.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218 : 15,660 = 15,660 : x
  2. Step 2: Convert to fraction form
    7,218/15,660 = 15,660/x
  3. Step 3: Cross multiply
    7,218x = 15,660 × 15,660
  4. Step 4: Simplify right side
    7,218x = 245,235,600
  5. Step 5: Solve for x
    x = 245,235,600/7,218
  6. Step 6: Final answer
    x = 33,975.56

Related Problems

Find third proportional to 3,609 and 7,830
Half scale
Find third proportional to 14,436 and 31,320
Double scale
Find third proportional to 7,220 and 15,664
Similar ratio
Find third proportional to 10,827 and 23,490
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.