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Finding the Fourth Proportional to 8,556.41, 12,829.08 and 5,625.83

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Solution

The fourth proportional to 8,556.41, 12,829.08 and 5,625.83 is: 8,435.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,556.41 : 12,829.08 = 5,625.83 : x
  2. Step 2: Convert to fraction form
    8,556.41/12,829.08 = 5,625.83/x
  3. Step 3: Cross multiply
    8,556.41x = 12,829.08 × 5,625.83
  4. Step 4: Simplify right side
    8,556.41x = 72,174,223.14
  5. Step 5: Solve for x
    x = 72,174,223.14/8,556.41
  6. Step 6: Final answer
    x = 8,435.11

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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.