Home / 8,316-19,680

Finding the Third Proportional to 8,316 and 19,680

Calculator

Solution

The third proportional to 8,316 and 19,680 is: 46,573.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,316 : 19,680 = 19,680 : x
  2. Step 2: Convert to fraction form
    8,316/19,680 = 19,680/x
  3. Step 3: Cross multiply
    8,316x = 19,680 × 19,680
  4. Step 4: Simplify right side
    8,316x = 387,302,400
  5. Step 5: Solve for x
    x = 387,302,400/8,316
  6. Step 6: Final answer
    x = 46,573.16

Related Problems

Find third proportional to 4,158 and 9,840
Half scale
Find third proportional to 16,632 and 39,360
Double scale
Find third proportional to 8,318 and 19,685
Similar ratio
Find third proportional to 12,474 and 29,520
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.