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Finding the Fourth Proportional to 12,165.53, 16,787.79 and 6,860.00

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Solution

The fourth proportional to 12,165.53, 16,787.79 and 6,860.00 is: 9,466.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,165.53 : 16,787.79 = 6,860.00 : x
  2. Step 2: Convert to fraction form
    12,165.53/16,787.79 = 6,860.00/x
  3. Step 3: Cross multiply
    12,165.53x = 16,787.79 × 6,860.00
  4. Step 4: Simplify right side
    12,165.53x = 115,164,290.51
  5. Step 5: Solve for x
    x = 115,164,290.51/12,165.53
  6. Step 6: Final answer
    x = 9,466.44

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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.