Home / 11,821.28-16,313.48-6,516.30

Finding the Fourth Proportional to 11,821.28, 16,313.48 and 6,516.30

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Solution

The fourth proportional to 11,821.28, 16,313.48 and 6,516.30 is: 8,992.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,821.28 : 16,313.48 = 6,516.30 : x
  2. Step 2: Convert to fraction form
    11,821.28/16,313.48 = 6,516.30/x
  3. Step 3: Cross multiply
    11,821.28x = 16,313.48 × 6,516.30
  4. Step 4: Simplify right side
    11,821.28x = 106,303,529.72
  5. Step 5: Solve for x
    x = 106,303,529.72/11,821.28
  6. Step 6: Final answer
    x = 8,992.56

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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.