Home / 11,821.64-16,313.40-6,516.45

Finding the Fourth Proportional to 11,821.64, 16,313.40 and 6,516.45

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Solution

The fourth proportional to 11,821.64, 16,313.40 and 6,516.45 is: 8,992.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,821.64 : 16,313.40 = 6,516.45 : x
  2. Step 2: Convert to fraction form
    11,821.64/16,313.40 = 6,516.45/x
  3. Step 3: Cross multiply
    11,821.64x = 16,313.40 × 6,516.45
  4. Step 4: Simplify right side
    11,821.64x = 106,305,455.43
  5. Step 5: Solve for x
    x = 106,305,455.43/11,821.64
  6. Step 6: Final answer
    x = 8,992.45

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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.