Home / 13,261.26-19,891.91-3,400.57

Finding the Fourth Proportional to 13,261.26, 19,891.91 and 3,400.57

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Solution

The fourth proportional to 13,261.26, 19,891.91 and 3,400.57 is: 5,100.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,261.26 : 19,891.91 = 3,400.57 : x
  2. Step 2: Convert to fraction form
    13,261.26/19,891.91 = 3,400.57/x
  3. Step 3: Cross multiply
    13,261.26x = 19,891.91 × 3,400.57
  4. Step 4: Simplify right side
    13,261.26x = 67,643,832.39
  5. Step 5: Solve for x
    x = 67,643,832.39/13,261.26
  6. Step 6: Final answer
    x = 5,100.86

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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.