Home / 12,383.93-18,575.87-3,618.83

Finding the Fourth Proportional to 12,383.93, 18,575.87 and 3,618.83

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Solution

The fourth proportional to 12,383.93, 18,575.87 and 3,618.83 is: 5,428.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,383.93 : 18,575.87 = 3,618.83 : x
  2. Step 2: Convert to fraction form
    12,383.93/18,575.87 = 3,618.83/x
  3. Step 3: Cross multiply
    12,383.93x = 18,575.87 × 3,618.83
  4. Step 4: Simplify right side
    12,383.93x = 67,222,804.66
  5. Step 5: Solve for x
    x = 67,222,804.66/12,383.93
  6. Step 6: Final answer
    x = 5,428.23

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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.