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Finding the Fourth Proportional to 12,579.00, 17,359.92 and 8,605.44

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Solution

The fourth proportional to 12,579.00, 17,359.92 and 8,605.44 is: 11,876.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,579.00 : 17,359.92 = 8,605.44 : x
  2. Step 2: Convert to fraction form
    12,579.00/17,359.92 = 8,605.44/x
  3. Step 3: Cross multiply
    12,579.00x = 17,359.92 × 8,605.44
  4. Step 4: Simplify right side
    12,579.00x = 149,389,749.96
  5. Step 5: Solve for x
    x = 149,389,749.96/12,579.00
  6. Step 6: Final answer
    x = 11,876.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.