Home / 11,694.20-16,138.23-6,389.24

Finding the Fourth Proportional to 11,694.20, 16,138.23 and 6,389.24

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Solution

The fourth proportional to 11,694.20, 16,138.23 and 6,389.24 is: 8,817.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,694.20 : 16,138.23 = 6,389.24 : x
  2. Step 2: Convert to fraction form
    11,694.20/16,138.23 = 6,389.24/x
  3. Step 3: Cross multiply
    11,694.20x = 16,138.23 × 6,389.24
  4. Step 4: Simplify right side
    11,694.20x = 103,111,024.65
  5. Step 5: Solve for x
    x = 103,111,024.65/11,694.20
  6. Step 6: Final answer
    x = 8,817.28

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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.