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Finding the Fourth Proportional to 12,862.44, 19,284.39 and 8,692.11

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Solution

The fourth proportional to 12,862.44, 19,284.39 and 8,692.11 is: 13,031.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,862.44 : 19,284.39 = 8,692.11 : x
  2. Step 2: Convert to fraction form
    12,862.44/19,284.39 = 8,692.11/x
  3. Step 3: Cross multiply
    12,862.44x = 19,284.39 × 8,692.11
  4. Step 4: Simplify right side
    12,862.44x = 167,622,039.16
  5. Step 5: Solve for x
    x = 167,622,039.16/12,862.44
  6. Step 6: Final answer
    x = 13,031.90

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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.