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Finding the Fourth Proportional to 18,648.58, 27,992.31 and 8,267.62

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Solution

The fourth proportional to 18,648.58, 27,992.31 and 8,267.62 is: 12,410.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,648.58 : 27,992.31 = 8,267.62 : x
  2. Step 2: Convert to fraction form
    18,648.58/27,992.31 = 8,267.62/x
  3. Step 3: Cross multiply
    18,648.58x = 27,992.31 × 8,267.62
  4. Step 4: Simplify right side
    18,648.58x = 231,429,782.00
  5. Step 5: Solve for x
    x = 231,429,782.00/18,648.58
  6. Step 6: Final answer
    x = 12,410.05

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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.