Home / 18,455.07-27,686.72-5,306.41

Finding the Fourth Proportional to 18,455.07, 27,686.72 and 5,306.41

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Solution

The fourth proportional to 18,455.07, 27,686.72 and 5,306.41 is: 7,960.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,455.07 : 27,686.72 = 5,306.41 : x
  2. Step 2: Convert to fraction form
    18,455.07/27,686.72 = 5,306.41/x
  3. Step 3: Cross multiply
    18,455.07x = 27,686.72 × 5,306.41
  4. Step 4: Simplify right side
    18,455.07x = 146,917,087.88
  5. Step 5: Solve for x
    x = 146,917,087.88/18,455.07
  6. Step 6: Final answer
    x = 7,960.80

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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.