Home / 8,423.38-12,636.92-2,580.45

Finding the Fourth Proportional to 8,423.38, 12,636.92 and 2,580.45

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Solution

The fourth proportional to 8,423.38, 12,636.92 and 2,580.45 is: 3,871.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,423.38 : 12,636.92 = 2,580.45 : x
  2. Step 2: Convert to fraction form
    8,423.38/12,636.92 = 2,580.45/x
  3. Step 3: Cross multiply
    8,423.38x = 12,636.92 × 2,580.45
  4. Step 4: Simplify right side
    8,423.38x = 32,608,940.21
  5. Step 5: Solve for x
    x = 32,608,940.21/8,423.38
  6. Step 6: Final answer
    x = 3,871.24

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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.