Home / 18,209.61-25,144.43-12,260.97

Finding the Fourth Proportional to 18,209.61, 25,144.43 and 12,260.97

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Solution

The fourth proportional to 18,209.61, 25,144.43 and 12,260.97 is: 16,930.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,209.61 : 25,144.43 = 12,260.97 : x
  2. Step 2: Convert to fraction form
    18,209.61/25,144.43 = 12,260.97/x
  3. Step 3: Cross multiply
    18,209.61x = 25,144.43 × 12,260.97
  4. Step 4: Simplify right side
    18,209.61x = 308,295,040.59
  5. Step 5: Solve for x
    x = 308,295,040.59/18,209.61
  6. Step 6: Final answer
    x = 16,930.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.