Home / 8,752-19,990

Finding the Third Proportional to 8,752 and 19,990

Calculator

Solution

The third proportional to 8,752 and 19,990 is: 45,658.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,752 : 19,990 = 19,990 : x
  2. Step 2: Convert to fraction form
    8,752/19,990 = 19,990/x
  3. Step 3: Cross multiply
    8,752x = 19,990 × 19,990
  4. Step 4: Simplify right side
    8,752x = 399,600,100
  5. Step 5: Solve for x
    x = 399,600,100/8,752
  6. Step 6: Final answer
    x = 45,658.15

Related Problems

Find third proportional to 4,376 and 9,995
Half scale
Find third proportional to 17,504 and 39,980
Double scale
Find third proportional to 8,754 and 19,995
Similar ratio
Find third proportional to 13,128 and 29,985
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.