Home / 13,342.24-20,012.88-4,108

Finding the Fourth Proportional to 13,342.24, 20,012.88 and 4,108

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Solution

The fourth proportional to 13,342.24, 20,012.88 and 4,108 is: 6,161.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,342.24 : 20,012.88 = 4,108 : x
  2. Step 2: Convert to fraction form
    13,342.24/20,012.88 = 4,108/x
  3. Step 3: Cross multiply
    13,342.24x = 20,012.88 × 4,108
  4. Step 4: Simplify right side
    13,342.24x = 82,212,911.04
  5. Step 5: Solve for x
    x = 82,212,911.04/13,342.24
  6. Step 6: Final answer
    x = 6,161.85

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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.