Home / 12,125.52-18,188.23-3,360.41

Finding the Fourth Proportional to 12,125.52, 18,188.23 and 3,360.41

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Solution

The fourth proportional to 12,125.52, 18,188.23 and 3,360.41 is: 5,040.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,125.52 : 18,188.23 = 3,360.41 : x
  2. Step 2: Convert to fraction form
    12,125.52/18,188.23 = 3,360.41/x
  3. Step 3: Cross multiply
    12,125.52x = 18,188.23 × 3,360.41
  4. Step 4: Simplify right side
    12,125.52x = 61,119,909.97
  5. Step 5: Solve for x
    x = 61,119,909.97/12,125.52
  6. Step 6: Final answer
    x = 5,040.60

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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.