Home / 13,078.05-19,610.92-5,076.60

Finding the Fourth Proportional to 13,078.05, 19,610.92 and 5,076.60

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Solution

The fourth proportional to 13,078.05, 19,610.92 and 5,076.60 is: 7,612.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,078.05 : 19,610.92 = 5,076.60 : x
  2. Step 2: Convert to fraction form
    13,078.05/19,610.92 = 5,076.60/x
  3. Step 3: Cross multiply
    13,078.05x = 19,610.92 × 5,076.60
  4. Step 4: Simplify right side
    13,078.05x = 99,556,796.47
  5. Step 5: Solve for x
    x = 99,556,796.47/13,078.05
  6. Step 6: Final answer
    x = 7,612.51

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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.