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Finding the Fourth Proportional to 13,080.44, 18,054.96 and 8,891.12

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Solution

The fourth proportional to 13,080.44, 18,054.96 and 8,891.12 is: 12,272.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,080.44 : 18,054.96 = 8,891.12 : x
  2. Step 2: Convert to fraction form
    13,080.44/18,054.96 = 8,891.12/x
  3. Step 3: Cross multiply
    13,080.44x = 18,054.96 × 8,891.12
  4. Step 4: Simplify right side
    13,080.44x = 160,528,815.96
  5. Step 5: Solve for x
    x = 160,528,815.96/13,080.44
  6. Step 6: Final answer
    x = 12,272.43

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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.