Home / 11,268.80-16,903.20-3,881.60

Finding the Fourth Proportional to 11,268.80, 16,903.20 and 3,881.60

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Solution

The fourth proportional to 11,268.80, 16,903.20 and 3,881.60 is: 5,822.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,268.80 : 16,903.20 = 3,881.60 : x
  2. Step 2: Convert to fraction form
    11,268.80/16,903.20 = 3,881.60/x
  3. Step 3: Cross multiply
    11,268.80x = 16,903.20 × 3,881.60
  4. Step 4: Simplify right side
    11,268.80x = 65,611,461.12
  5. Step 5: Solve for x
    x = 65,611,461.12/11,268.80
  6. Step 6: Final answer
    x = 5,822.40

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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.