Home / 11,942.90-16,481.06-6,637.70

Finding the Fourth Proportional to 11,942.90, 16,481.06 and 6,637.70

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Solution

The fourth proportional to 11,942.90, 16,481.06 and 6,637.70 is: 9,159.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,942.90 : 16,481.06 = 6,637.70 : x
  2. Step 2: Convert to fraction form
    11,942.90/16,481.06 = 6,637.70/x
  3. Step 3: Cross multiply
    11,942.90x = 16,481.06 × 6,637.70
  4. Step 4: Simplify right side
    11,942.90x = 109,396,331.96
  5. Step 5: Solve for x
    x = 109,396,331.96/11,942.90
  6. Step 6: Final answer
    x = 9,159.95

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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.