Home / 11,765.30-16,236.05-6,387.62

Finding the Fourth Proportional to 11,765.30, 16,236.05 and 6,387.62

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Solution

The fourth proportional to 11,765.30, 16,236.05 and 6,387.62 is: 8,814.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,765.30 : 16,236.05 = 6,387.62 : x
  2. Step 2: Convert to fraction form
    11,765.30/16,236.05 = 6,387.62/x
  3. Step 3: Cross multiply
    11,765.30x = 16,236.05 × 6,387.62
  4. Step 4: Simplify right side
    11,765.30x = 103,709,604.58
  5. Step 5: Solve for x
    x = 103,709,604.58/11,765.30
  6. Step 6: Final answer
    x = 8,814.87

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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.