Home / 11,821.32-16,313.16-6,516.36

Finding the Fourth Proportional to 11,821.32, 16,313.16 and 6,516.36

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Solution

The fourth proportional to 11,821.32, 16,313.16 and 6,516.36 is: 8,992.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,821.32 : 16,313.16 = 6,516.36 : x
  2. Step 2: Convert to fraction form
    11,821.32/16,313.16 = 6,516.36/x
  3. Step 3: Cross multiply
    11,821.32x = 16,313.16 × 6,516.36
  4. Step 4: Simplify right side
    11,821.32x = 106,302,423.30
  5. Step 5: Solve for x
    x = 106,302,423.30/11,821.32
  6. Step 6: Final answer
    x = 8,992.43

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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.