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Finding the Fourth Proportional to 8,648.20, 12,973.02 and 2,804.92

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Solution

The fourth proportional to 8,648.20, 12,973.02 and 2,804.92 is: 4,207.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,648.20 : 12,973.02 = 2,804.92 : x
  2. Step 2: Convert to fraction form
    8,648.20/12,973.02 = 2,804.92/x
  3. Step 3: Cross multiply
    8,648.20x = 12,973.02 × 2,804.92
  4. Step 4: Simplify right side
    8,648.20x = 36,388,283.26
  5. Step 5: Solve for x
    x = 36,388,283.26/8,648.20
  6. Step 6: Final answer
    x = 4,207.61

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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.