Home / 18,636.37-25,718.67-10,138.97

Finding the Fourth Proportional to 18,636.37, 25,718.67 and 10,138.97

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Solution

The fourth proportional to 18,636.37, 25,718.67 and 10,138.97 is: 13,992.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,636.37 : 25,718.67 = 10,138.97 : x
  2. Step 2: Convert to fraction form
    18,636.37/25,718.67 = 10,138.97/x
  3. Step 3: Cross multiply
    18,636.37x = 25,718.67 × 10,138.97
  4. Step 4: Simplify right side
    18,636.37x = 260,760,887.87
  5. Step 5: Solve for x
    x = 260,760,887.87/18,636.37
  6. Step 6: Final answer
    x = 13,992.04

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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.