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Finding the Fourth Proportional to 8,576.78, 12,866.79 and 2,952.95

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Solution

The fourth proportional to 8,576.78, 12,866.79 and 2,952.95 is: 4,429.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,576.78 : 12,866.79 = 2,952.95 : x
  2. Step 2: Convert to fraction form
    8,576.78/12,866.79 = 2,952.95/x
  3. Step 3: Cross multiply
    8,576.78x = 12,866.79 × 2,952.95
  4. Step 4: Simplify right side
    8,576.78x = 37,994,987.53
  5. Step 5: Solve for x
    x = 37,994,987.53/8,576.78
  6. Step 6: Final answer
    x = 4,429.98

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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.