Home / 13,370.40-18,450.24-8,064

Finding the Fourth Proportional to 13,370.40, 18,450.24 and 8,064

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Solution

The fourth proportional to 13,370.40, 18,450.24 and 8,064 is: 11,127.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,370.40 : 18,450.24 = 8,064 : x
  2. Step 2: Convert to fraction form
    13,370.40/18,450.24 = 8,064/x
  3. Step 3: Cross multiply
    13,370.40x = 18,450.24 × 8,064
  4. Step 4: Simplify right side
    13,370.40x = 148,782,735.36
  5. Step 5: Solve for x
    x = 148,782,735.36/13,370.40
  6. Step 6: Final answer
    x = 11,127.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.