Home / 12,664.11-18,998.33-3,898.83

Finding the Fourth Proportional to 12,664.11, 18,998.33 and 3,898.83

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Solution

The fourth proportional to 12,664.11, 18,998.33 and 3,898.83 is: 5,848.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,664.11 : 18,998.33 = 3,898.83 : x
  2. Step 2: Convert to fraction form
    12,664.11/18,998.33 = 3,898.83/x
  3. Step 3: Cross multiply
    12,664.11x = 18,998.33 × 3,898.83
  4. Step 4: Simplify right side
    12,664.11x = 74,071,258.95
  5. Step 5: Solve for x
    x = 74,071,258.95/12,664.11
  6. Step 6: Final answer
    x = 5,848.91

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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.