Home / 11,520.54-17,278.86-3,201.36

Finding the Fourth Proportional to 11,520.54, 17,278.86 and 3,201.36

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Solution

The fourth proportional to 11,520.54, 17,278.86 and 3,201.36 is: 4,801.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,520.54 : 17,278.86 = 3,201.36 : x
  2. Step 2: Convert to fraction form
    11,520.54/17,278.86 = 3,201.36/x
  3. Step 3: Cross multiply
    11,520.54x = 17,278.86 × 3,201.36
  4. Step 4: Simplify right side
    11,520.54x = 55,315,851.25
  5. Step 5: Solve for x
    x = 55,315,851.25/11,520.54
  6. Step 6: Final answer
    x = 4,801.50

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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.