Home / 18,600.03-25,661.58-11,889.57

Finding the Fourth Proportional to 18,600.03, 25,661.58 and 11,889.57

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Solution

The fourth proportional to 18,600.03, 25,661.58 and 11,889.57 is: 16,403.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,600.03 : 25,661.58 = 11,889.57 : x
  2. Step 2: Convert to fraction form
    18,600.03/25,661.58 = 11,889.57/x
  3. Step 3: Cross multiply
    18,600.03x = 25,661.58 × 11,889.57
  4. Step 4: Simplify right side
    18,600.03x = 305,105,151.72
  5. Step 5: Solve for x
    x = 305,105,151.72/18,600.03
  6. Step 6: Final answer
    x = 16,403.48

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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.