Home / 18,195.98-25,110.78-11,908.32

Finding the Fourth Proportional to 18,195.98, 25,110.78 and 11,908.32

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Solution

The fourth proportional to 18,195.98, 25,110.78 and 11,908.32 is: 16,433.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,195.98 : 25,110.78 = 11,908.32 : x
  2. Step 2: Convert to fraction form
    18,195.98/25,110.78 = 11,908.32/x
  3. Step 3: Cross multiply
    18,195.98x = 25,110.78 × 11,908.32
  4. Step 4: Simplify right side
    18,195.98x = 299,027,203.69
  5. Step 5: Solve for x
    x = 299,027,203.69/18,195.98
  6. Step 6: Final answer
    x = 16,433.70

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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.