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Finding the Fourth Proportional to 13,410.58, 18,494.49 and 8,375.26

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Solution

The fourth proportional to 13,410.58, 18,494.49 and 8,375.26 is: 11,550.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,410.58 : 18,494.49 = 8,375.26 : x
  2. Step 2: Convert to fraction form
    13,410.58/18,494.49 = 8,375.26/x
  3. Step 3: Cross multiply
    13,410.58x = 18,494.49 × 8,375.26
  4. Step 4: Simplify right side
    13,410.58x = 154,896,162.32
  5. Step 5: Solve for x
    x = 154,896,162.32/13,410.58
  6. Step 6: Final answer
    x = 11,550.30

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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.