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Finding the Fourth Proportional to 18,831, 28,250.84 and 6,519

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Solution

The fourth proportional to 18,831, 28,250.84 and 6,519 is: 9,780.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,831 : 28,250.84 = 6,519 : x
  2. Step 2: Convert to fraction form
    18,831/28,250.84 = 6,519/x
  3. Step 3: Cross multiply
    18,831x = 28,250.84 × 6,519
  4. Step 4: Simplify right side
    18,831x = 184,167,225.96
  5. Step 5: Solve for x
    x = 184,167,225.96/18,831
  6. Step 6: Final answer
    x = 9,780.00

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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.