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Finding the Fourth Proportional to 18,550.39, 27,829.07 and 7,457.92

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Solution

The fourth proportional to 18,550.39, 27,829.07 and 7,457.92 is: 11,188.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,550.39 : 27,829.07 = 7,457.92 : x
  2. Step 2: Convert to fraction form
    18,550.39/27,829.07 = 7,457.92/x
  3. Step 3: Cross multiply
    18,550.39x = 27,829.07 × 7,457.92
  4. Step 4: Simplify right side
    18,550.39x = 207,546,977.73
  5. Step 5: Solve for x
    x = 207,546,977.73/18,550.39
  6. Step 6: Final answer
    x = 11,188.28

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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.