Home / 11,949.64-16,488.69-6,912.85

Finding the Fourth Proportional to 11,949.64, 16,488.69 and 6,912.85

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Solution

The fourth proportional to 11,949.64, 16,488.69 and 6,912.85 is: 9,538.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,949.64 : 16,488.69 = 6,912.85 : x
  2. Step 2: Convert to fraction form
    11,949.64/16,488.69 = 6,912.85/x
  3. Step 3: Cross multiply
    11,949.64x = 16,488.69 × 6,912.85
  4. Step 4: Simplify right side
    11,949.64x = 113,983,840.67
  5. Step 5: Solve for x
    x = 113,983,840.67/11,949.64
  6. Step 6: Final answer
    x = 9,538.68

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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.