Home / 18,141.32-27,211.98-11,983.88

Finding the Fourth Proportional to 18,141.32, 27,211.98 and 11,983.88

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Solution

The fourth proportional to 18,141.32, 27,211.98 and 11,983.88 is: 17,975.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,141.32 : 27,211.98 = 11,983.88 : x
  2. Step 2: Convert to fraction form
    18,141.32/27,211.98 = 11,983.88/x
  3. Step 3: Cross multiply
    18,141.32x = 27,211.98 × 11,983.88
  4. Step 4: Simplify right side
    18,141.32x = 326,105,102.88
  5. Step 5: Solve for x
    x = 326,105,102.88/18,141.32
  6. Step 6: Final answer
    x = 17,975.82

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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.