Home / 9,840-15,216

Finding the Third Proportional to 9,840 and 15,216

Calculator

Solution

The third proportional to 9,840 and 15,216 is: 23,529.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,840 : 15,216 = 15,216 : x
  2. Step 2: Convert to fraction form
    9,840/15,216 = 15,216/x
  3. Step 3: Cross multiply
    9,840x = 15,216 × 15,216
  4. Step 4: Simplify right side
    9,840x = 231,526,656
  5. Step 5: Solve for x
    x = 231,526,656/9,840
  6. Step 6: Final answer
    x = 23,529.13

Related Problems

Find third proportional to 4,920 and 7,608
Half scale
Find third proportional to 19,680 and 30,432
Double scale
Find third proportional to 9,842 and 15,219
Similar ratio
Find third proportional to 14,760 and 22,824
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.