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Finding the Fourth Proportional to 13,692.70, 19,228.10 and 13,692.70

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Solution

The fourth proportional to 13,692.70, 19,228.10 and 13,692.70 is: 19,228.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,692.70 : 19,228.10 = 13,692.70 : x
  2. Step 2: Convert to fraction form
    13,692.70/19,228.10 = 13,692.70/x
  3. Step 3: Cross multiply
    13,692.70x = 19,228.10 × 13,692.70
  4. Step 4: Simplify right side
    13,692.70x = 263,284,604.87
  5. Step 5: Solve for x
    x = 263,284,604.87/13,692.70
  6. Step 6: Final answer
    x = 19,228.10

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These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.