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Finding the Fourth Proportional to 8,572.93, 12,859.82 and 2,729.99

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Solution

The fourth proportional to 8,572.93, 12,859.82 and 2,729.99 is: 4,095.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,572.93 : 12,859.82 = 2,729.99 : x
  2. Step 2: Convert to fraction form
    8,572.93/12,859.82 = 2,729.99/x
  3. Step 3: Cross multiply
    8,572.93x = 12,859.82 × 2,729.99
  4. Step 4: Simplify right side
    8,572.93x = 35,107,218.98
  5. Step 5: Solve for x
    x = 35,107,218.98/8,572.93
  6. Step 6: Final answer
    x = 4,095.13

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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.