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Finding the Fourth Proportional to 11,308.70, 16,963.05 and 10,055.90

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Solution

The fourth proportional to 11,308.70, 16,963.05 and 10,055.90 is: 15,083.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,308.70 : 16,963.05 = 10,055.90 : x
  2. Step 2: Convert to fraction form
    11,308.70/16,963.05 = 10,055.90/x
  3. Step 3: Cross multiply
    11,308.70x = 16,963.05 × 10,055.90
  4. Step 4: Simplify right side
    11,308.70x = 170,578,734.50
  5. Step 5: Solve for x
    x = 170,578,734.50/11,308.70
  6. Step 6: Final answer
    x = 15,083.85

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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.