Home / 32,400-48,600-7,776

Finding the Fourth Proportional to 32,400, 48,600 and 7,776

Calculator

Solution

The fourth proportional to 32,400, 48,600 and 7,776 is: 11,664

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,400 : 48,600 = 7,776 : x
  2. Step 2: Convert to fraction form
    32,400/48,600 = 7,776/x
  3. Step 3: Cross multiply
    32,400x = 48,600 × 7,776
  4. Step 4: Simplify right side
    32,400x = 377,913,600
  5. Step 5: Solve for x
    x = 377,913,600/32,400
  6. Step 6: Final answer
    x = 11,664

Related Problems

Find fourth proportional to 16,200, 24,300 and 3,888
Half scale
Find fourth proportional to 64,800, 97,200 and 15,552
Double scale
Find fourth proportional to 32,401, 48,601.50 and 7,777
Similar ratio
Find fourth proportional to 48,600, 72,900 and 11,664
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.