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Finding the Fourth Proportional to 8,539.11, 12,807.99 and 2,695.77

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Solution

The fourth proportional to 8,539.11, 12,807.99 and 2,695.77 is: 4,043.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,539.11 : 12,807.99 = 2,695.77 : x
  2. Step 2: Convert to fraction form
    8,539.11/12,807.99 = 2,695.77/x
  3. Step 3: Cross multiply
    8,539.11x = 12,807.99 × 2,695.77
  4. Step 4: Simplify right side
    8,539.11x = 34,527,395.20
  5. Step 5: Solve for x
    x = 34,527,395.20/8,539.11
  6. Step 6: Final answer
    x = 4,043.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.