Home / 12,173.36-18,273.12-11,908.88

Finding the Fourth Proportional to 12,173.36, 18,273.12 and 11,908.88

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Solution

The fourth proportional to 12,173.36, 18,273.12 and 11,908.88 is: 17,876.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,173.36 : 18,273.12 = 11,908.88 : x
  2. Step 2: Convert to fraction form
    12,173.36/18,273.12 = 11,908.88/x
  3. Step 3: Cross multiply
    12,173.36x = 18,273.12 × 11,908.88
  4. Step 4: Simplify right side
    12,173.36x = 217,612,393.31
  5. Step 5: Solve for x
    x = 217,612,393.31/12,173.36
  6. Step 6: Final answer
    x = 17,876.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.