Home / 8,379.23-12,564.49-2,830.57

Finding the Fourth Proportional to 8,379.23, 12,564.49 and 2,830.57

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Solution

The fourth proportional to 8,379.23, 12,564.49 and 2,830.57 is: 4,244.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,379.23 : 12,564.49 = 2,830.57 : x
  2. Step 2: Convert to fraction form
    8,379.23/12,564.49 = 2,830.57/x
  3. Step 3: Cross multiply
    8,379.23x = 12,564.49 × 2,830.57
  4. Step 4: Simplify right side
    8,379.23x = 35,564,660.67
  5. Step 5: Solve for x
    x = 35,564,660.67/8,379.23
  6. Step 6: Final answer
    x = 4,244.38

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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.