Home / 12,811.72-19,217.58-3,577.48

Finding the Fourth Proportional to 12,811.72, 19,217.58 and 3,577.48

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Solution

The fourth proportional to 12,811.72, 19,217.58 and 3,577.48 is: 5,366.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,811.72 : 19,217.58 = 3,577.48 : x
  2. Step 2: Convert to fraction form
    12,811.72/19,217.58 = 3,577.48/x
  3. Step 3: Cross multiply
    12,811.72x = 19,217.58 × 3,577.48
  4. Step 4: Simplify right side
    12,811.72x = 68,750,508.10
  5. Step 5: Solve for x
    x = 68,750,508.10/12,811.72
  6. Step 6: Final answer
    x = 5,366.22

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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.