Home / 11,728.70-16,184.99-6,423.41

Finding the Fourth Proportional to 11,728.70, 16,184.99 and 6,423.41

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Solution

The fourth proportional to 11,728.70, 16,184.99 and 6,423.41 is: 8,863.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,728.70 : 16,184.99 = 6,423.41 : x
  2. Step 2: Convert to fraction form
    11,728.70/16,184.99 = 6,423.41/x
  3. Step 3: Cross multiply
    11,728.70x = 16,184.99 × 6,423.41
  4. Step 4: Simplify right side
    11,728.70x = 103,962,764.82
  5. Step 5: Solve for x
    x = 103,962,764.82/11,728.70
  6. Step 6: Final answer
    x = 8,863.96

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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.