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Finding the Fourth Proportional to 18,073.68, 27,124.20 and 7,692.72

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Solution

The fourth proportional to 18,073.68, 27,124.20 and 7,692.72 is: 11,544.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,073.68 : 27,124.20 = 7,692.72 : x
  2. Step 2: Convert to fraction form
    18,073.68/27,124.20 = 7,692.72/x
  3. Step 3: Cross multiply
    18,073.68x = 27,124.20 × 7,692.72
  4. Step 4: Simplify right side
    18,073.68x = 208,658,875.82
  5. Step 5: Solve for x
    x = 208,658,875.82/18,073.68
  6. Step 6: Final answer
    x = 11,544.90

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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.