Home / 13,340.44-18,418.37-8,562.43

Finding the Fourth Proportional to 13,340.44, 18,418.37 and 8,562.43

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Solution

The fourth proportional to 13,340.44, 18,418.37 and 8,562.43 is: 11,821.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,340.44 : 18,418.37 = 8,562.43 : x
  2. Step 2: Convert to fraction form
    13,340.44/18,418.37 = 8,562.43/x
  3. Step 3: Cross multiply
    13,340.44x = 18,418.37 × 8,562.43
  4. Step 4: Simplify right side
    13,340.44x = 157,705,914.98
  5. Step 5: Solve for x
    x = 157,705,914.98/13,340.44
  6. Step 6: Final answer
    x = 11,821.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.