Home / 8,453.31-12,683.94-3,772.90

Finding the Fourth Proportional to 8,453.31, 12,683.94 and 3,772.90

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Solution

The fourth proportional to 8,453.31, 12,683.94 and 3,772.90 is: 5,661.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,453.31 : 12,683.94 = 3,772.90 : x
  2. Step 2: Convert to fraction form
    8,453.31/12,683.94 = 3,772.90/x
  3. Step 3: Cross multiply
    8,453.31x = 12,683.94 × 3,772.90
  4. Step 4: Simplify right side
    8,453.31x = 47,855,188.81
  5. Step 5: Solve for x
    x = 47,855,188.81/8,453.31
  6. Step 6: Final answer
    x = 5,661.12

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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.