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Finding the Fourth Proportional to 8,579.93, 12,861.48 and 4,136.37

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Solution

The fourth proportional to 8,579.93, 12,861.48 and 4,136.37 is: 6,200.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,579.93 : 12,861.48 = 4,136.37 : x
  2. Step 2: Convert to fraction form
    8,579.93/12,861.48 = 4,136.37/x
  3. Step 3: Cross multiply
    8,579.93x = 12,861.48 × 4,136.37
  4. Step 4: Simplify right side
    8,579.93x = 53,199,807.31
  5. Step 5: Solve for x
    x = 53,199,807.31/8,579.93
  6. Step 6: Final answer
    x = 6,200.50

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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.