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Finding the Fourth Proportional to 8,495.45, 12,748.19 and 3,234.89

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Solution

The fourth proportional to 8,495.45, 12,748.19 and 3,234.89 is: 4,854.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,495.45 : 12,748.19 = 3,234.89 : x
  2. Step 2: Convert to fraction form
    8,495.45/12,748.19 = 3,234.89/x
  3. Step 3: Cross multiply
    8,495.45x = 12,748.19 × 3,234.89
  4. Step 4: Simplify right side
    8,495.45x = 41,238,992.35
  5. Step 5: Solve for x
    x = 41,238,992.35/8,495.45
  6. Step 6: Final answer
    x = 4,854.24

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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.