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Finding the Fourth Proportional to 18,709.00, 28,077.77 and 6,873.99

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Solution

The fourth proportional to 18,709.00, 28,077.77 and 6,873.99 is: 10,316.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,709.00 : 28,077.77 = 6,873.99 : x
  2. Step 2: Convert to fraction form
    18,709.00/28,077.77 = 6,873.99/x
  3. Step 3: Cross multiply
    18,709.00x = 28,077.77 × 6,873.99
  4. Step 4: Simplify right side
    18,709.00x = 193,006,327.39
  5. Step 5: Solve for x
    x = 193,006,327.39/18,709.00
  6. Step 6: Final answer
    x = 10,316.23

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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.