Home / 9,988-15,285

Finding the Third Proportional to 9,988 and 15,285

Calculator

Solution

The third proportional to 9,988 and 15,285 is: 23,391.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,988 : 15,285 = 15,285 : x
  2. Step 2: Convert to fraction form
    9,988/15,285 = 15,285/x
  3. Step 3: Cross multiply
    9,988x = 15,285 × 15,285
  4. Step 4: Simplify right side
    9,988x = 233,631,225
  5. Step 5: Solve for x
    x = 233,631,225/9,988
  6. Step 6: Final answer
    x = 23,391.19

Related Problems

Find third proportional to 4,994 and 7,642.50
Half scale
Find third proportional to 19,976 and 30,570
Double scale
Find third proportional to 9,990 and 15,288
Similar ratio
Find third proportional to 14,982 and 22,927.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.