Home / 14,171.92-21,257.91-3,783.64

Finding the Fourth Proportional to 14,171.92, 21,257.91 and 3,783.64

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Solution

The fourth proportional to 14,171.92, 21,257.91 and 3,783.64 is: 5,675.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,171.92 : 21,257.91 = 3,783.64 : x
  2. Step 2: Convert to fraction form
    14,171.92/21,257.91 = 3,783.64/x
  3. Step 3: Cross multiply
    14,171.92x = 21,257.91 × 3,783.64
  4. Step 4: Simplify right side
    14,171.92x = 80,432,278.59
  5. Step 5: Solve for x
    x = 80,432,278.59/14,171.92
  6. Step 6: Final answer
    x = 5,675.47

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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.