Home / 11,722.35-16,177.28-6,687.39

Finding the Fourth Proportional to 11,722.35, 16,177.28 and 6,687.39

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Solution

The fourth proportional to 11,722.35, 16,177.28 and 6,687.39 is: 9,228.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,722.35 : 16,177.28 = 6,687.39 : x
  2. Step 2: Convert to fraction form
    11,722.35/16,177.28 = 6,687.39/x
  3. Step 3: Cross multiply
    11,722.35x = 16,177.28 × 6,687.39
  4. Step 4: Simplify right side
    11,722.35x = 108,183,780.50
  5. Step 5: Solve for x
    x = 108,183,780.50/11,722.35
  6. Step 6: Final answer
    x = 9,228.85

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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.