Home / 11,694.06-16,138.04-6,389.21

Finding the Fourth Proportional to 11,694.06, 16,138.04 and 6,389.21

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Solution

The fourth proportional to 11,694.06, 16,138.04 and 6,389.21 is: 8,817.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,694.06 : 16,138.04 = 6,389.21 : x
  2. Step 2: Convert to fraction form
    11,694.06/16,138.04 = 6,389.21/x
  3. Step 3: Cross multiply
    11,694.06x = 16,138.04 × 6,389.21
  4. Step 4: Simplify right side
    11,694.06x = 103,109,213.91
  5. Step 5: Solve for x
    x = 103,109,213.91/11,694.06
  6. Step 6: Final answer
    x = 8,817.23

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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.