Home / 8,911.28-12,292.80-5,762

Finding the Fourth Proportional to 8,911.28, 12,292.80 and 5,762

Calculator

Solution

The fourth proportional to 8,911.28, 12,292.80 and 5,762 is: 7,948.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,911.28 : 12,292.80 = 5,762 : x
  2. Step 2: Convert to fraction form
    8,911.28/12,292.80 = 5,762/x
  3. Step 3: Cross multiply
    8,911.28x = 12,292.80 × 5,762
  4. Step 4: Simplify right side
    8,911.28x = 70,831,113.60
  5. Step 5: Solve for x
    x = 70,831,113.60/8,911.28
  6. Step 6: Final answer
    x = 7,948.48

Related Problems

Find fourth proportional to 4,455.64, 6,146.40 and 2,881
Half scale
Find fourth proportional to 17,822.56, 24,585.60 and 11,524
Double scale
Find fourth proportional to 8,912.28, 12,294.18 and 5,763
Similar ratio
Find fourth proportional to 13,366.92, 18,439.20 and 8,643
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.