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Finding the Fourth Proportional to 8,692.18, 13,031.79 and 5,228.62

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Solution

The fourth proportional to 8,692.18, 13,031.79 and 5,228.62 is: 7,839.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,692.18 : 13,031.79 = 5,228.62 : x
  2. Step 2: Convert to fraction form
    8,692.18/13,031.79 = 5,228.62/x
  3. Step 3: Cross multiply
    8,692.18x = 13,031.79 × 5,228.62
  4. Step 4: Simplify right side
    8,692.18x = 68,138,277.83
  5. Step 5: Solve for x
    x = 68,138,277.83/8,692.18
  6. Step 6: Final answer
    x = 7,839.03

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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.