Home / 4,140-9,108

Finding the Third Proportional to 4,140 and 9,108

Calculator

Solution

The third proportional to 4,140 and 9,108 is: 20,037.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,140 : 9,108 = 9,108 : x
  2. Step 2: Convert to fraction form
    4,140/9,108 = 9,108/x
  3. Step 3: Cross multiply
    4,140x = 9,108 × 9,108
  4. Step 4: Simplify right side
    4,140x = 82,955,664
  5. Step 5: Solve for x
    x = 82,955,664/4,140
  6. Step 6: Final answer
    x = 20,037.60

Related Problems

Find third proportional to 2,070 and 4,554
Half scale
Find third proportional to 8,280 and 18,216
Double scale
Find third proportional to 4,142 and 9,112
Similar ratio
Find third proportional to 6,210 and 13,662
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.