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Finding the Fourth Proportional to 11,342.44, 16,948.59 and 8,659.18

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Solution

The fourth proportional to 11,342.44, 16,948.59 and 8,659.18 is: 12,939.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,342.44 : 16,948.59 = 8,659.18 : x
  2. Step 2: Convert to fraction form
    11,342.44/16,948.59 = 8,659.18/x
  3. Step 3: Cross multiply
    11,342.44x = 16,948.59 × 8,659.18
  4. Step 4: Simplify right side
    11,342.44x = 146,760,891.56
  5. Step 5: Solve for x
    x = 146,760,891.56/11,342.44
  6. Step 6: Final answer
    x = 12,939.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.