Home / 11,682.81-16,122.51-6,377.85

Finding the Fourth Proportional to 11,682.81, 16,122.51 and 6,377.85

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Solution

The fourth proportional to 11,682.81, 16,122.51 and 6,377.85 is: 8,801.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,682.81 : 16,122.51 = 6,377.85 : x
  2. Step 2: Convert to fraction form
    11,682.81/16,122.51 = 6,377.85/x
  3. Step 3: Cross multiply
    11,682.81x = 16,122.51 × 6,377.85
  4. Step 4: Simplify right side
    11,682.81x = 102,826,950.40
  5. Step 5: Solve for x
    x = 102,826,950.40/11,682.81
  6. Step 6: Final answer
    x = 8,801.56

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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.