Home / 11,942.56-16,481.28-6,637.20

Finding the Fourth Proportional to 11,942.56, 16,481.28 and 6,637.20

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Solution

The fourth proportional to 11,942.56, 16,481.28 and 6,637.20 is: 9,159.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,942.56 : 16,481.28 = 6,637.20 : x
  2. Step 2: Convert to fraction form
    11,942.56/16,481.28 = 6,637.20/x
  3. Step 3: Cross multiply
    11,942.56x = 16,481.28 × 6,637.20
  4. Step 4: Simplify right side
    11,942.56x = 109,389,551.62
  5. Step 5: Solve for x
    x = 109,389,551.62/11,942.56
  6. Step 6: Final answer
    x = 9,159.64

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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.