Home / 12,375.20-18,564.88-6,135.52

Finding the Fourth Proportional to 12,375.20, 18,564.88 and 6,135.52

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Solution

The fourth proportional to 12,375.20, 18,564.88 and 6,135.52 is: 9,204.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,375.20 : 18,564.88 = 6,135.52 : x
  2. Step 2: Convert to fraction form
    12,375.20/18,564.88 = 6,135.52/x
  3. Step 3: Cross multiply
    12,375.20x = 18,564.88 × 6,135.52
  4. Step 4: Simplify right side
    12,375.20x = 113,905,192.54
  5. Step 5: Solve for x
    x = 113,905,192.54/12,375.20
  6. Step 6: Final answer
    x = 9,204.31

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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.