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Finding the Fourth Proportional to 18,873.44, 26,042.64 and 10,489.76

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Solution

The fourth proportional to 18,873.44, 26,042.64 and 10,489.76 is: 14,474.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,873.44 : 26,042.64 = 10,489.76 : x
  2. Step 2: Convert to fraction form
    18,873.44/26,042.64 = 10,489.76/x
  3. Step 3: Cross multiply
    18,873.44x = 26,042.64 × 10,489.76
  4. Step 4: Simplify right side
    18,873.44x = 273,181,043.37
  5. Step 5: Solve for x
    x = 273,181,043.37/18,873.44
  6. Step 6: Final answer
    x = 14,474.36

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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.