Home / 12,641.07-18,964.38-3,876.68

Finding the Fourth Proportional to 12,641.07, 18,964.38 and 3,876.68

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Solution

The fourth proportional to 12,641.07, 18,964.38 and 3,876.68 is: 5,815.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,641.07 : 18,964.38 = 3,876.68 : x
  2. Step 2: Convert to fraction form
    12,641.07/18,964.38 = 3,876.68/x
  3. Step 3: Cross multiply
    12,641.07x = 18,964.38 × 3,876.68
  4. Step 4: Simplify right side
    12,641.07x = 73,518,737.84
  5. Step 5: Solve for x
    x = 73,518,737.84/12,641.07
  6. Step 6: Final answer
    x = 5,815.86

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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.