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Finding the Fourth Proportional to 12,481.92, 18,739.24 and 9,726.32

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Solution

The fourth proportional to 12,481.92, 18,739.24 and 9,726.32 is: 14,602.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481.92 : 18,739.24 = 9,726.32 : x
  2. Step 2: Convert to fraction form
    12,481.92/18,739.24 = 9,726.32/x
  3. Step 3: Cross multiply
    12,481.92x = 18,739.24 × 9,726.32
  4. Step 4: Simplify right side
    12,481.92x = 182,263,844.80
  5. Step 5: Solve for x
    x = 182,263,844.80/12,481.92
  6. Step 6: Final answer
    x = 14,602.23

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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.