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Finding the Fourth Proportional to 12,235.59, 16,892.13 and 8,055.99

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Solution

The fourth proportional to 12,235.59, 16,892.13 and 8,055.99 is: 11,121.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,235.59 : 16,892.13 = 8,055.99 : x
  2. Step 2: Convert to fraction form
    12,235.59/16,892.13 = 8,055.99/x
  3. Step 3: Cross multiply
    12,235.59x = 16,892.13 × 8,055.99
  4. Step 4: Simplify right side
    12,235.59x = 136,082,830.36
  5. Step 5: Solve for x
    x = 136,082,830.36/12,235.59
  6. Step 6: Final answer
    x = 11,121.89

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.