Home / 13,553.60-18,704.20-7,584.56

Finding the Fourth Proportional to 13,553.60, 18,704.20 and 7,584.56

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Solution

The fourth proportional to 13,553.60, 18,704.20 and 7,584.56 is: 10,466.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,553.60 : 18,704.20 = 7,584.56 : x
  2. Step 2: Convert to fraction form
    13,553.60/18,704.20 = 7,584.56/x
  3. Step 3: Cross multiply
    13,553.60x = 18,704.20 × 7,584.56
  4. Step 4: Simplify right side
    13,553.60x = 141,863,127.15
  5. Step 5: Solve for x
    x = 141,863,127.15/13,553.60
  6. Step 6: Final answer
    x = 10,466.82

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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.