Home / 8,420.26-12,632.70-3,676.81

Finding the Fourth Proportional to 8,420.26, 12,632.70 and 3,676.81

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Solution

The fourth proportional to 8,420.26, 12,632.70 and 3,676.81 is: 5,516.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,420.26 : 12,632.70 = 3,676.81 : x
  2. Step 2: Convert to fraction form
    8,420.26/12,632.70 = 3,676.81/x
  3. Step 3: Cross multiply
    8,420.26x = 12,632.70 × 3,676.81
  4. Step 4: Simplify right side
    8,420.26x = 46,448,037.69
  5. Step 5: Solve for x
    x = 46,448,037.69/8,420.26
  6. Step 6: Final answer
    x = 5,516.22

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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.