Home / 12,664.38-18,999.30-4,873.20

Finding the Fourth Proportional to 12,664.38, 18,999.30 and 4,873.20

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Solution

The fourth proportional to 12,664.38, 18,999.30 and 4,873.20 is: 7,310.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,664.38 : 18,999.30 = 4,873.20 : x
  2. Step 2: Convert to fraction form
    12,664.38/18,999.30 = 4,873.20/x
  3. Step 3: Cross multiply
    12,664.38x = 18,999.30 × 4,873.20
  4. Step 4: Simplify right side
    12,664.38x = 92,587,388.76
  5. Step 5: Solve for x
    x = 92,587,388.76/12,664.38
  6. Step 6: Final answer
    x = 7,310.85

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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.