Home / 11,744.75-16,208.13-6,439.92

Finding the Fourth Proportional to 11,744.75, 16,208.13 and 6,439.92

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Solution

The fourth proportional to 11,744.75, 16,208.13 and 6,439.92 is: 8,887.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,744.75 : 16,208.13 = 6,439.92 : x
  2. Step 2: Convert to fraction form
    11,744.75/16,208.13 = 6,439.92/x
  3. Step 3: Cross multiply
    11,744.75x = 16,208.13 × 6,439.92
  4. Step 4: Simplify right side
    11,744.75x = 104,379,060.55
  5. Step 5: Solve for x
    x = 104,379,060.55/11,744.75
  6. Step 6: Final answer
    x = 8,887.30

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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.