Home / 12,619.23-18,930.68-3,853.01

Finding the Fourth Proportional to 12,619.23, 18,930.68 and 3,853.01

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Solution

The fourth proportional to 12,619.23, 18,930.68 and 3,853.01 is: 5,780.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,619.23 : 18,930.68 = 3,853.01 : x
  2. Step 2: Convert to fraction form
    12,619.23/18,930.68 = 3,853.01/x
  3. Step 3: Cross multiply
    12,619.23x = 18,930.68 × 3,853.01
  4. Step 4: Simplify right side
    12,619.23x = 72,940,099.35
  5. Step 5: Solve for x
    x = 72,940,099.35/12,619.23
  6. Step 6: Final answer
    x = 5,780.08

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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.