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Finding the Fourth Proportional to 8,556.52, 12,827.20 and 3,361.20

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Solution

The fourth proportional to 8,556.52, 12,827.20 and 3,361.20 is: 5,038.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,556.52 : 12,827.20 = 3,361.20 : x
  2. Step 2: Convert to fraction form
    8,556.52/12,827.20 = 3,361.20/x
  3. Step 3: Cross multiply
    8,556.52x = 12,827.20 × 3,361.20
  4. Step 4: Simplify right side
    8,556.52x = 43,114,784.64
  5. Step 5: Solve for x
    x = 43,114,784.64/8,556.52
  6. Step 6: Final answer
    x = 5,038.82

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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.