Home / 12,638.08-18,956.43-3,873.02

Finding the Fourth Proportional to 12,638.08, 18,956.43 and 3,873.02

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Solution

The fourth proportional to 12,638.08, 18,956.43 and 3,873.02 is: 5,809.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,638.08 : 18,956.43 = 3,873.02 : x
  2. Step 2: Convert to fraction form
    12,638.08/18,956.43 = 3,873.02/x
  3. Step 3: Cross multiply
    12,638.08x = 18,956.43 × 3,873.02
  4. Step 4: Simplify right side
    12,638.08x = 73,418,537.74
  5. Step 5: Solve for x
    x = 73,418,537.74/12,638.08
  6. Step 6: Final answer
    x = 5,809.31

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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.