Home / 12,201.20-18,265.35-7,268.30

Finding the Fourth Proportional to 12,201.20, 18,265.35 and 7,268.30

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Solution

The fourth proportional to 12,201.20, 18,265.35 and 7,268.30 is: 10,880.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,201.20 : 18,265.35 = 7,268.30 : x
  2. Step 2: Convert to fraction form
    12,201.20/18,265.35 = 7,268.30/x
  3. Step 3: Cross multiply
    12,201.20x = 18,265.35 × 7,268.30
  4. Step 4: Simplify right side
    12,201.20x = 132,758,043.41
  5. Step 5: Solve for x
    x = 132,758,043.41/12,201.20
  6. Step 6: Final answer
    x = 10,880.74

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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.