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Finding the Fourth Proportional to 12,525.17, 18,789.17 and 4,205.76

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Solution

The fourth proportional to 12,525.17, 18,789.17 and 4,205.76 is: 6,309.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,525.17 : 18,789.17 = 4,205.76 : x
  2. Step 2: Convert to fraction form
    12,525.17/18,789.17 = 4,205.76/x
  3. Step 3: Cross multiply
    12,525.17x = 18,789.17 × 4,205.76
  4. Step 4: Simplify right side
    12,525.17x = 79,022,718.59
  5. Step 5: Solve for x
    x = 79,022,718.59/12,525.17
  6. Step 6: Final answer
    x = 6,309.12

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.