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Finding the Fourth Proportional to 8,673.04, 12,997.10 and 4,285.37

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Solution

The fourth proportional to 8,673.04, 12,997.10 and 4,285.37 is: 6,421.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,673.04 : 12,997.10 = 4,285.37 : x
  2. Step 2: Convert to fraction form
    8,673.04/12,997.10 = 4,285.37/x
  3. Step 3: Cross multiply
    8,673.04x = 12,997.10 × 4,285.37
  4. Step 4: Simplify right side
    8,673.04x = 55,697,317.44
  5. Step 5: Solve for x
    x = 55,697,317.44/8,673.04
  6. Step 6: Final answer
    x = 6,421.89

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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.