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Finding the Fourth Proportional to 16,999, 25,501.38 and 5,309.92

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Solution

The fourth proportional to 16,999, 25,501.38 and 5,309.92 is: 7,965.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,999 : 25,501.38 = 5,309.92 : x
  2. Step 2: Convert to fraction form
    16,999/25,501.38 = 5,309.92/x
  3. Step 3: Cross multiply
    16,999x = 25,501.38 × 5,309.92
  4. Step 4: Simplify right side
    16,999x = 135,410,287.69
  5. Step 5: Solve for x
    x = 135,410,287.69/16,999
  6. Step 6: Final answer
    x = 7,965.78

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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.