Home / 12,383.58-18,575.53-3,618.68

Finding the Fourth Proportional to 12,383.58, 18,575.53 and 3,618.68

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Solution

The fourth proportional to 12,383.58, 18,575.53 and 3,618.68 is: 5,428.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,383.58 : 18,575.53 = 3,618.68 : x
  2. Step 2: Convert to fraction form
    12,383.58/18,575.53 = 3,618.68/x
  3. Step 3: Cross multiply
    12,383.58x = 18,575.53 × 3,618.68
  4. Step 4: Simplify right side
    12,383.58x = 67,218,796.98
  5. Step 5: Solve for x
    x = 67,218,796.98/12,383.58
  6. Step 6: Final answer
    x = 5,428.06

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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.