Home / 12,432-18,648-4,224

Finding the Fourth Proportional to 12,432, 18,648 and 4,224

Calculator

Solution

The fourth proportional to 12,432, 18,648 and 4,224 is: 6,336

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,432 : 18,648 = 4,224 : x
  2. Step 2: Convert to fraction form
    12,432/18,648 = 4,224/x
  3. Step 3: Cross multiply
    12,432x = 18,648 × 4,224
  4. Step 4: Simplify right side
    12,432x = 78,769,152
  5. Step 5: Solve for x
    x = 78,769,152/12,432
  6. Step 6: Final answer
    x = 6,336

Related Problems

Find fourth proportional to 6,216, 9,324 and 2,112
Half scale
Find fourth proportional to 24,864, 37,296 and 8,448
Double scale
Find fourth proportional to 12,433, 18,649.50 and 4,225
Similar ratio
Find fourth proportional to 18,648, 27,972 and 6,336
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.