Home / 11,821.20-17,726.34-3,498.24

Finding the Fourth Proportional to 11,821.20, 17,726.34 and 3,498.24

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Solution

The fourth proportional to 11,821.20, 17,726.34 and 3,498.24 is: 5,245.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,821.20 : 17,726.34 = 3,498.24 : x
  2. Step 2: Convert to fraction form
    11,821.20/17,726.34 = 3,498.24/x
  3. Step 3: Cross multiply
    11,821.20x = 17,726.34 × 3,498.24
  4. Step 4: Simplify right side
    11,821.20x = 62,010,991.64
  5. Step 5: Solve for x
    x = 62,010,991.64/11,821.20
  6. Step 6: Final answer
    x = 5,245.74

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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.