Home / 7,515-8,365.50

Finding the Third Proportional to 7,515 and 8,365.50

Calculator

Solution

The third proportional to 7,515 and 8,365.50 is: 9,312.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515 : 8,365.50 = 8,365.50 : x
  2. Step 2: Convert to fraction form
    7,515/8,365.50 = 8,365.50/x
  3. Step 3: Cross multiply
    7,515x = 8,365.50 × 8,365.50
  4. Step 4: Simplify right side
    7,515x = 69,981,590.25
  5. Step 5: Solve for x
    x = 69,981,590.25/7,515
  6. Step 6: Final answer
    x = 9,312.25

Related Problems

Find third proportional to 3,757.50 and 4,182.75
Half scale
Find third proportional to 15,030 and 16,731
Double scale
Find third proportional to 7,517 and 8,368
Similar ratio
Find third proportional to 11,272.50 and 12,548.25
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.