Home / 10,446.41-15,669.51-8,379.38

Finding the Fourth Proportional to 10,446.41, 15,669.51 and 8,379.38

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Solution

The fourth proportional to 10,446.41, 15,669.51 and 8,379.38 is: 12,568.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,446.41 : 15,669.51 = 8,379.38 : x
  2. Step 2: Convert to fraction form
    10,446.41/15,669.51 = 8,379.38/x
  3. Step 3: Cross multiply
    10,446.41x = 15,669.51 × 8,379.38
  4. Step 4: Simplify right side
    10,446.41x = 131,300,778.70
  5. Step 5: Solve for x
    x = 131,300,778.70/10,446.41
  6. Step 6: Final answer
    x = 12,568.99

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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.