Home / 8,520-18,682.50

Finding the Third Proportional to 8,520 and 18,682.50

Calculator

Solution

The third proportional to 8,520 and 18,682.50 is: 40,966.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520 : 18,682.50 = 18,682.50 : x
  2. Step 2: Convert to fraction form
    8,520/18,682.50 = 18,682.50/x
  3. Step 3: Cross multiply
    8,520x = 18,682.50 × 18,682.50
  4. Step 4: Simplify right side
    8,520x = 349,035,806.25
  5. Step 5: Solve for x
    x = 349,035,806.25/8,520
  6. Step 6: Final answer
    x = 40,966.64

Related Problems

Find third proportional to 4,260 and 9,341.25
Half scale
Find third proportional to 17,040 and 37,365
Double scale
Find third proportional to 8,522 and 18,687
Similar ratio
Find third proportional to 12,780 and 28,023.75
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.