Home / 18,965.03-26,165.50-12,254.61

Finding the Fourth Proportional to 18,965.03, 26,165.50 and 12,254.61

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Solution

The fourth proportional to 18,965.03, 26,165.50 and 12,254.61 is: 16,907.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,965.03 : 26,165.50 = 12,254.61 : x
  2. Step 2: Convert to fraction form
    18,965.03/26,165.50 = 12,254.61/x
  3. Step 3: Cross multiply
    18,965.03x = 26,165.50 × 12,254.61
  4. Step 4: Simplify right side
    18,965.03x = 320,647,997.96
  5. Step 5: Solve for x
    x = 320,647,997.96/18,965.03
  6. Step 6: Final answer
    x = 16,907.33

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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.