Home / 13,622.60-20,435.06-3,761.87

Finding the Fourth Proportional to 13,622.60, 20,435.06 and 3,761.87

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Solution

The fourth proportional to 13,622.60, 20,435.06 and 3,761.87 is: 5,643.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,622.60 : 20,435.06 = 3,761.87 : x
  2. Step 2: Convert to fraction form
    13,622.60/20,435.06 = 3,761.87/x
  3. Step 3: Cross multiply
    13,622.60x = 20,435.06 × 3,761.87
  4. Step 4: Simplify right side
    13,622.60x = 76,874,099.65
  5. Step 5: Solve for x
    x = 76,874,099.65/13,622.60
  6. Step 6: Final answer
    x = 5,643.13

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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.