Home / 13,495.80-20,234.10-5,172.60

Finding the Fourth Proportional to 13,495.80, 20,234.10 and 5,172.60

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Solution

The fourth proportional to 13,495.80, 20,234.10 and 5,172.60 is: 7,755.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,495.80 : 20,234.10 = 5,172.60 : x
  2. Step 2: Convert to fraction form
    13,495.80/20,234.10 = 5,172.60/x
  3. Step 3: Cross multiply
    13,495.80x = 20,234.10 × 5,172.60
  4. Step 4: Simplify right side
    13,495.80x = 104,662,905.66
  5. Step 5: Solve for x
    x = 104,662,905.66/13,495.80
  6. Step 6: Final answer
    x = 7,755.22

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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.