Home / 11,682.79-16,121.98-6,377.70

Finding the Fourth Proportional to 11,682.79, 16,121.98 and 6,377.70

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Solution

The fourth proportional to 11,682.79, 16,121.98 and 6,377.70 is: 8,801.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,682.79 : 16,121.98 = 6,377.70 : x
  2. Step 2: Convert to fraction form
    11,682.79/16,121.98 = 6,377.70/x
  3. Step 3: Cross multiply
    11,682.79x = 16,121.98 × 6,377.70
  4. Step 4: Simplify right side
    11,682.79x = 102,821,151.85
  5. Step 5: Solve for x
    x = 102,821,151.85/11,682.79
  6. Step 6: Final answer
    x = 8,801.08

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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.