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Finding the Fourth Proportional to 8,061.05, 12,078.62 and 6,765.05

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Solution

The fourth proportional to 8,061.05, 12,078.62 and 6,765.05 is: 10,136.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,061.05 : 12,078.62 = 6,765.05 : x
  2. Step 2: Convert to fraction form
    8,061.05/12,078.62 = 6,765.05/x
  3. Step 3: Cross multiply
    8,061.05x = 12,078.62 × 6,765.05
  4. Step 4: Simplify right side
    8,061.05x = 81,712,434.41
  5. Step 5: Solve for x
    x = 81,712,434.41/8,061.05
  6. Step 6: Final answer
    x = 10,136.70

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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.