Home / 7,205-15,640

Finding the Third Proportional to 7,205 and 15,640

Calculator

Solution

The third proportional to 7,205 and 15,640 is: 33,949.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,205 : 15,640 = 15,640 : x
  2. Step 2: Convert to fraction form
    7,205/15,640 = 15,640/x
  3. Step 3: Cross multiply
    7,205x = 15,640 × 15,640
  4. Step 4: Simplify right side
    7,205x = 244,609,600
  5. Step 5: Solve for x
    x = 244,609,600/7,205
  6. Step 6: Final answer
    x = 33,949.98

Related Problems

Find third proportional to 3,602.50 and 7,820
Half scale
Find third proportional to 14,410 and 31,280
Double scale
Find third proportional to 7,207 and 15,644
Similar ratio
Find third proportional to 10,807.50 and 23,460
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.