Home / 18,543.74-27,819.25-6,857.06

Finding the Fourth Proportional to 18,543.74, 27,819.25 and 6,857.06

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Solution

The fourth proportional to 18,543.74, 27,819.25 and 6,857.06 is: 10,286.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,543.74 : 27,819.25 = 6,857.06 : x
  2. Step 2: Convert to fraction form
    18,543.74/27,819.25 = 6,857.06/x
  3. Step 3: Cross multiply
    18,543.74x = 27,819.25 × 6,857.06
  4. Step 4: Simplify right side
    18,543.74x = 190,758,110.17
  5. Step 5: Solve for x
    x = 190,758,110.17/18,543.74
  6. Step 6: Final answer
    x = 10,286.93

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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.