Home / 6,624-7,987.50

Finding the Third Proportional to 6,624 and 7,987.50

Calculator

Solution

The third proportional to 6,624 and 7,987.50 is: 9,631.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,624 : 7,987.50 = 7,987.50 : x
  2. Step 2: Convert to fraction form
    6,624/7,987.50 = 7,987.50/x
  3. Step 3: Cross multiply
    6,624x = 7,987.50 × 7,987.50
  4. Step 4: Simplify right side
    6,624x = 63,800,156.25
  5. Step 5: Solve for x
    x = 63,800,156.25/6,624
  6. Step 6: Final answer
    x = 9,631.67

Related Problems

Find third proportional to 3,312 and 3,993.75
Half scale
Find third proportional to 13,248 and 15,975
Double scale
Find third proportional to 6,626 and 7,990
Similar ratio
Find third proportional to 9,936 and 11,981.25
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.