Home / 12,383.56-18,576.54-3,618.60

Finding the Fourth Proportional to 12,383.56, 18,576.54 and 3,618.60

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Solution

The fourth proportional to 12,383.56, 18,576.54 and 3,618.60 is: 5,428.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,383.56 : 18,576.54 = 3,618.60 : x
  2. Step 2: Convert to fraction form
    12,383.56/18,576.54 = 3,618.60/x
  3. Step 3: Cross multiply
    12,383.56x = 18,576.54 × 3,618.60
  4. Step 4: Simplify right side
    12,383.56x = 67,221,067.64
  5. Step 5: Solve for x
    x = 67,221,067.64/12,383.56
  6. Step 6: Final answer
    x = 5,428.25

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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.