Home / 18,788.10-28,179.32-6,306

Finding the Fourth Proportional to 18,788.10, 28,179.32 and 6,306

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Solution

The fourth proportional to 18,788.10, 28,179.32 and 6,306 is: 9,458.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,788.10 : 28,179.32 = 6,306 : x
  2. Step 2: Convert to fraction form
    18,788.10/28,179.32 = 6,306/x
  3. Step 3: Cross multiply
    18,788.10x = 28,179.32 × 6,306
  4. Step 4: Simplify right side
    18,788.10x = 177,698,760.39
  5. Step 5: Solve for x
    x = 177,698,760.39/18,788.10
  6. Step 6: Final answer
    x = 9,458.05

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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.