Home / 12,216-18,323.08-3,895.68

Finding the Fourth Proportional to 12,216, 18,323.08 and 3,895.68

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Solution

The fourth proportional to 12,216, 18,323.08 and 3,895.68 is: 5,843.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,216 : 18,323.08 = 3,895.68 : x
  2. Step 2: Convert to fraction form
    12,216/18,323.08 = 3,895.68/x
  3. Step 3: Cross multiply
    12,216x = 18,323.08 × 3,895.68
  4. Step 4: Simplify right side
    12,216x = 71,380,856.29
  5. Step 5: Solve for x
    x = 71,380,856.29/12,216
  6. Step 6: Final answer
    x = 5,843.23

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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.