Home / 7,117.50-15,621

Finding the Third Proportional to 7,117.50 and 15,621

Calculator

Solution

The third proportional to 7,117.50 and 15,621 is: 34,283.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,117.50 : 15,621 = 15,621 : x
  2. Step 2: Convert to fraction form
    7,117.50/15,621 = 15,621/x
  3. Step 3: Cross multiply
    7,117.50x = 15,621 × 15,621
  4. Step 4: Simplify right side
    7,117.50x = 244,015,641
  5. Step 5: Solve for x
    x = 244,015,641/7,117.50
  6. Step 6: Final answer
    x = 34,283.90

Related Problems

Find third proportional to 3,558.75 and 7,810.50
Half scale
Find third proportional to 14,235 and 31,242
Double scale
Find third proportional to 7,120 and 15,625
Similar ratio
Find third proportional to 10,676.25 and 23,431.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.