Home / 12,132.37-18,187.72-4,735.11

Finding the Fourth Proportional to 12,132.37, 18,187.72 and 4,735.11

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Solution

The fourth proportional to 12,132.37, 18,187.72 and 4,735.11 is: 7,098.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,132.37 : 18,187.72 = 4,735.11 : x
  2. Step 2: Convert to fraction form
    12,132.37/18,187.72 = 4,735.11/x
  3. Step 3: Cross multiply
    12,132.37x = 18,187.72 × 4,735.11
  4. Step 4: Simplify right side
    12,132.37x = 86,120,854.85
  5. Step 5: Solve for x
    x = 86,120,854.85/12,132.37
  6. Step 6: Final answer
    x = 7,098.44

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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.