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Finding the Fourth Proportional to 12,917.03, 17,832.92 and 8,675.64

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Solution

The fourth proportional to 12,917.03, 17,832.92 and 8,675.64 is: 11,977.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,917.03 : 17,832.92 = 8,675.64 : x
  2. Step 2: Convert to fraction form
    12,917.03/17,832.92 = 8,675.64/x
  3. Step 3: Cross multiply
    12,917.03x = 17,832.92 × 8,675.64
  4. Step 4: Simplify right side
    12,917.03x = 154,711,950.69
  5. Step 5: Solve for x
    x = 154,711,950.69/12,917.03
  6. Step 6: Final answer
    x = 11,977.37

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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.