Home / 12,664.60-18,997.98-3,305.86

Finding the Fourth Proportional to 12,664.60, 18,997.98 and 3,305.86

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Solution

The fourth proportional to 12,664.60, 18,997.98 and 3,305.86 is: 4,959.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,664.60 : 18,997.98 = 3,305.86 : x
  2. Step 2: Convert to fraction form
    12,664.60/18,997.98 = 3,305.86/x
  3. Step 3: Cross multiply
    12,664.60x = 18,997.98 × 3,305.86
  4. Step 4: Simplify right side
    12,664.60x = 62,804,662.16
  5. Step 5: Solve for x
    x = 62,804,662.16/12,664.60
  6. Step 6: Final answer
    x = 4,959.07

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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.