Home / 11,821.58-16,313.90-6,516.59

Finding the Fourth Proportional to 11,821.58, 16,313.90 and 6,516.59

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Solution

The fourth proportional to 11,821.58, 16,313.90 and 6,516.59 is: 8,992.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,821.58 : 16,313.90 = 6,516.59 : x
  2. Step 2: Convert to fraction form
    11,821.58/16,313.90 = 6,516.59/x
  3. Step 3: Cross multiply
    11,821.58x = 16,313.90 × 6,516.59
  4. Step 4: Simplify right side
    11,821.58x = 106,310,965.02
  5. Step 5: Solve for x
    x = 106,310,965.02/11,821.58
  6. Step 6: Final answer
    x = 8,992.96

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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.