Home / 18,732.07-28,076.91-7,624.81

Finding the Fourth Proportional to 18,732.07, 28,076.91 and 7,624.81

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Solution

The fourth proportional to 18,732.07, 28,076.91 and 7,624.81 is: 11,428.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,732.07 : 28,076.91 = 7,624.81 : x
  2. Step 2: Convert to fraction form
    18,732.07/28,076.91 = 7,624.81/x
  3. Step 3: Cross multiply
    18,732.07x = 28,076.91 × 7,624.81
  4. Step 4: Simplify right side
    18,732.07x = 214,081,104.14
  5. Step 5: Solve for x
    x = 214,081,104.14/18,732.07
  6. Step 6: Final answer
    x = 11,428.59

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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.