Home / 12,548.28-18,820.92-3,783.24

Finding the Fourth Proportional to 12,548.28, 18,820.92 and 3,783.24

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Solution

The fourth proportional to 12,548.28, 18,820.92 and 3,783.24 is: 5,674.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,548.28 : 18,820.92 = 3,783.24 : x
  2. Step 2: Convert to fraction form
    12,548.28/18,820.92 = 3,783.24/x
  3. Step 3: Cross multiply
    12,548.28x = 18,820.92 × 3,783.24
  4. Step 4: Simplify right side
    12,548.28x = 71,204,057.38
  5. Step 5: Solve for x
    x = 71,204,057.38/12,548.28
  6. Step 6: Final answer
    x = 5,674.41

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Similar ratio
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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.