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Finding the Fourth Proportional to 8,573.52, 12,860.04 and 3,640.68

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Solution

The fourth proportional to 8,573.52, 12,860.04 and 3,640.68 is: 5,460.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,573.52 : 12,860.04 = 3,640.68 : x
  2. Step 2: Convert to fraction form
    8,573.52/12,860.04 = 3,640.68/x
  3. Step 3: Cross multiply
    8,573.52x = 12,860.04 × 3,640.68
  4. Step 4: Simplify right side
    8,573.52x = 46,819,290.43
  5. Step 5: Solve for x
    x = 46,819,290.43/8,573.52
  6. Step 6: Final answer
    x = 5,460.92

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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.