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Finding the Fourth Proportional to 8,624.60, 11,906.48 and 5,806.79

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Solution

The fourth proportional to 8,624.60, 11,906.48 and 5,806.79 is: 8,016.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,624.60 : 11,906.48 = 5,806.79 : x
  2. Step 2: Convert to fraction form
    8,624.60/11,906.48 = 5,806.79/x
  3. Step 3: Cross multiply
    8,624.60x = 11,906.48 × 5,806.79
  4. Step 4: Simplify right side
    8,624.60x = 69,138,429.00
  5. Step 5: Solve for x
    x = 69,138,429.00/8,624.60
  6. Step 6: Final answer
    x = 8,016.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.