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Finding the Fourth Proportional to 12,662.44, 17,449.50 and 9,118.96

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Solution

The fourth proportional to 12,662.44, 17,449.50 and 9,118.96 is: 12,566.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,662.44 : 17,449.50 = 9,118.96 : x
  2. Step 2: Convert to fraction form
    12,662.44/17,449.50 = 9,118.96/x
  3. Step 3: Cross multiply
    12,662.44x = 17,449.50 × 9,118.96
  4. Step 4: Simplify right side
    12,662.44x = 159,121,292.52
  5. Step 5: Solve for x
    x = 159,121,292.52/12,662.44
  6. Step 6: Final answer
    x = 12,566.40

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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.