Home / 18,476.82-27,715.15-4,625.78

Finding the Fourth Proportional to 18,476.82, 27,715.15 and 4,625.78

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Solution

The fourth proportional to 18,476.82, 27,715.15 and 4,625.78 is: 6,938.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,476.82 : 27,715.15 = 4,625.78 : x
  2. Step 2: Convert to fraction form
    18,476.82/27,715.15 = 4,625.78/x
  3. Step 3: Cross multiply
    18,476.82x = 27,715.15 × 4,625.78
  4. Step 4: Simplify right side
    18,476.82x = 128,204,186.57
  5. Step 5: Solve for x
    x = 128,204,186.57/18,476.82
  6. Step 6: Final answer
    x = 6,938.65

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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.