Home / 12,383.62-18,577.08-3,618.41

Finding the Fourth Proportional to 12,383.62, 18,577.08 and 3,618.41

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Solution

The fourth proportional to 12,383.62, 18,577.08 and 3,618.41 is: 5,428.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,383.62 : 18,577.08 = 3,618.41 : x
  2. Step 2: Convert to fraction form
    12,383.62/18,577.08 = 3,618.41/x
  3. Step 3: Cross multiply
    12,383.62x = 18,577.08 × 3,618.41
  4. Step 4: Simplify right side
    12,383.62x = 67,219,399.16
  5. Step 5: Solve for x
    x = 67,219,399.16/12,383.62
  6. Step 6: Final answer
    x = 5,428.09

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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.