Home / 10,606.65-15,910.78-3,211.71

Finding the Fourth Proportional to 10,606.65, 15,910.78 and 3,211.71

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Solution

The fourth proportional to 10,606.65, 15,910.78 and 3,211.71 is: 4,817.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,606.65 : 15,910.78 = 3,211.71 : x
  2. Step 2: Convert to fraction form
    10,606.65/15,910.78 = 3,211.71/x
  3. Step 3: Cross multiply
    10,606.65x = 15,910.78 × 3,211.71
  4. Step 4: Simplify right side
    10,606.65x = 51,100,794.31
  5. Step 5: Solve for x
    x = 51,100,794.31/10,606.65
  6. Step 6: Final answer
    x = 4,817.81

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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.