Home / 11,949.74-16,490.32-6,644.75

Finding the Fourth Proportional to 11,949.74, 16,490.32 and 6,644.75

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Solution

The fourth proportional to 11,949.74, 16,490.32 and 6,644.75 is: 9,169.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,949.74 : 16,490.32 = 6,644.75 : x
  2. Step 2: Convert to fraction form
    11,949.74/16,490.32 = 6,644.75/x
  3. Step 3: Cross multiply
    11,949.74x = 16,490.32 × 6,644.75
  4. Step 4: Simplify right side
    11,949.74x = 109,573,954.76
  5. Step 5: Solve for x
    x = 109,573,954.76/11,949.74
  6. Step 6: Final answer
    x = 9,169.57

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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.