Home / 11,755.07-16,221.89-6,377.49

Finding the Fourth Proportional to 11,755.07, 16,221.89 and 6,377.49

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Solution

The fourth proportional to 11,755.07, 16,221.89 and 6,377.49 is: 8,800.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,755.07 : 16,221.89 = 6,377.49 : x
  2. Step 2: Convert to fraction form
    11,755.07/16,221.89 = 6,377.49/x
  3. Step 3: Cross multiply
    11,755.07x = 16,221.89 × 6,377.49
  4. Step 4: Simplify right side
    11,755.07x = 103,454,909.37
  5. Step 5: Solve for x
    x = 103,454,909.37/11,755.07
  6. Step 6: Final answer
    x = 8,800.88

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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.