Home / 30,156-45,234-8,268

Finding the Fourth Proportional to 30,156, 45,234 and 8,268

Calculator

Solution

The fourth proportional to 30,156, 45,234 and 8,268 is: 12,402

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,156 : 45,234 = 8,268 : x
  2. Step 2: Convert to fraction form
    30,156/45,234 = 8,268/x
  3. Step 3: Cross multiply
    30,156x = 45,234 × 8,268
  4. Step 4: Simplify right side
    30,156x = 373,994,712
  5. Step 5: Solve for x
    x = 373,994,712/30,156
  6. Step 6: Final answer
    x = 12,402

Related Problems

Find fourth proportional to 15,078, 22,617 and 4,134
Half scale
Find fourth proportional to 60,312, 90,468 and 16,536
Double scale
Find fourth proportional to 30,157, 45,235.50 and 8,269
Similar ratio
Find fourth proportional to 45,234, 67,851 and 12,402
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.