Home / 12,125.46-18,190-4,332.44

Finding the Fourth Proportional to 12,125.46, 18,190 and 4,332.44

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Solution

The fourth proportional to 12,125.46, 18,190 and 4,332.44 is: 6,499.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,125.46 : 18,190 = 4,332.44 : x
  2. Step 2: Convert to fraction form
    12,125.46/18,190 = 4,332.44/x
  3. Step 3: Cross multiply
    12,125.46x = 18,190 × 4,332.44
  4. Step 4: Simplify right side
    12,125.46x = 78,807,083.60
  5. Step 5: Solve for x
    x = 78,807,083.60/12,125.46
  6. Step 6: Final answer
    x = 6,499.31

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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.