Home / 12,558.90-18,838.48-3,793.88

Finding the Fourth Proportional to 12,558.90, 18,838.48 and 3,793.88

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Solution

The fourth proportional to 12,558.90, 18,838.48 and 3,793.88 is: 5,690.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,558.90 : 18,838.48 = 3,793.88 : x
  2. Step 2: Convert to fraction form
    12,558.90/18,838.48 = 3,793.88/x
  3. Step 3: Cross multiply
    12,558.90x = 18,838.48 × 3,793.88
  4. Step 4: Simplify right side
    12,558.90x = 71,470,932.50
  5. Step 5: Solve for x
    x = 71,470,932.50/12,558.90
  6. Step 6: Final answer
    x = 5,690.86

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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.