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Finding the Fourth Proportional to 8,409.56, 12,590.54 and 4,451.83

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Solution

The fourth proportional to 8,409.56, 12,590.54 and 4,451.83 is: 6,665.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,409.56 : 12,590.54 = 4,451.83 : x
  2. Step 2: Convert to fraction form
    8,409.56/12,590.54 = 4,451.83/x
  3. Step 3: Cross multiply
    8,409.56x = 12,590.54 × 4,451.83
  4. Step 4: Simplify right side
    8,409.56x = 56,050,906.65
  5. Step 5: Solve for x
    x = 56,050,906.65/8,409.56
  6. Step 6: Final answer
    x = 6,665.15

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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.