Home / 12,811.26-19,220.12-3,577.26

Finding the Fourth Proportional to 12,811.26, 19,220.12 and 3,577.26

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Solution

The fourth proportional to 12,811.26, 19,220.12 and 3,577.26 is: 5,366.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,811.26 : 19,220.12 = 3,577.26 : x
  2. Step 2: Convert to fraction form
    12,811.26/19,220.12 = 3,577.26/x
  3. Step 3: Cross multiply
    12,811.26x = 19,220.12 × 3,577.26
  4. Step 4: Simplify right side
    12,811.26x = 68,755,366.47
  5. Step 5: Solve for x
    x = 68,755,366.47/12,811.26
  6. Step 6: Final answer
    x = 5,366.79

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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.