Home / 18,321.29-27,483.75-5,674.05

Finding the Fourth Proportional to 18,321.29, 27,483.75 and 5,674.05

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Solution

The fourth proportional to 18,321.29, 27,483.75 and 5,674.05 is: 8,511.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,321.29 : 27,483.75 = 5,674.05 : x
  2. Step 2: Convert to fraction form
    18,321.29/27,483.75 = 5,674.05/x
  3. Step 3: Cross multiply
    18,321.29x = 27,483.75 × 5,674.05
  4. Step 4: Simplify right side
    18,321.29x = 155,944,171.69
  5. Step 5: Solve for x
    x = 155,944,171.69/18,321.29
  6. Step 6: Final answer
    x = 8,511.64

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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.