Home / 18,122.52-25,003.95-11,749.38

Finding the Fourth Proportional to 18,122.52, 25,003.95 and 11,749.38

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Solution

The fourth proportional to 18,122.52, 25,003.95 and 11,749.38 is: 16,210.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,122.52 : 25,003.95 = 11,749.38 : x
  2. Step 2: Convert to fraction form
    18,122.52/25,003.95 = 11,749.38/x
  3. Step 3: Cross multiply
    18,122.52x = 25,003.95 × 11,749.38
  4. Step 4: Simplify right side
    18,122.52x = 293,780,910.05
  5. Step 5: Solve for x
    x = 293,780,910.05/18,122.52
  6. Step 6: Final answer
    x = 16,210.82

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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.