Home / 13,553.60-20,292.06-8,611

Finding the Fourth Proportional to 13,553.60, 20,292.06 and 8,611

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Solution

The fourth proportional to 13,553.60, 20,292.06 and 8,611 is: 12,892.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,553.60 : 20,292.06 = 8,611 : x
  2. Step 2: Convert to fraction form
    13,553.60/20,292.06 = 8,611/x
  3. Step 3: Cross multiply
    13,553.60x = 20,292.06 × 8,611
  4. Step 4: Simplify right side
    13,553.60x = 174,734,928.66
  5. Step 5: Solve for x
    x = 174,734,928.66/13,553.60
  6. Step 6: Final answer
    x = 12,892.14

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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.