Home / 18,321.69-27,482.08-5,173.87

Finding the Fourth Proportional to 18,321.69, 27,482.08 and 5,173.87

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Solution

The fourth proportional to 18,321.69, 27,482.08 and 5,173.87 is: 7,760.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,321.69 : 27,482.08 = 5,173.87 : x
  2. Step 2: Convert to fraction form
    18,321.69/27,482.08 = 5,173.87/x
  3. Step 3: Cross multiply
    18,321.69x = 27,482.08 × 5,173.87
  4. Step 4: Simplify right side
    18,321.69x = 142,188,709.25
  5. Step 5: Solve for x
    x = 142,188,709.25/18,321.69
  6. Step 6: Final answer
    x = 7,760.68

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1.5x scale

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.