Home / 10,154.25-15,231.42-3,228.75

Finding the Fourth Proportional to 10,154.25, 15,231.42 and 3,228.75

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Solution

The fourth proportional to 10,154.25, 15,231.42 and 3,228.75 is: 4,843.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,154.25 : 15,231.42 = 3,228.75 : x
  2. Step 2: Convert to fraction form
    10,154.25/15,231.42 = 3,228.75/x
  3. Step 3: Cross multiply
    10,154.25x = 15,231.42 × 3,228.75
  4. Step 4: Simplify right side
    10,154.25x = 49,178,447.33
  5. Step 5: Solve for x
    x = 49,178,447.33/10,154.25
  6. Step 6: Final answer
    x = 4,843.14

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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.