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Finding the Fourth Proportional to 18,571.68, 27,821.07 and 10,764.09

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Solution

The fourth proportional to 18,571.68, 27,821.07 and 10,764.09 is: 16,125.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,571.68 : 27,821.07 = 10,764.09 : x
  2. Step 2: Convert to fraction form
    18,571.68/27,821.07 = 10,764.09/x
  3. Step 3: Cross multiply
    18,571.68x = 27,821.07 × 10,764.09
  4. Step 4: Simplify right side
    18,571.68x = 299,468,501.38
  5. Step 5: Solve for x
    x = 299,468,501.38/18,571.68
  6. Step 6: Final answer
    x = 16,125.01

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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.