Home / 11,871.36-16,382.35-6,493.67

Finding the Fourth Proportional to 11,871.36, 16,382.35 and 6,493.67

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Solution

The fourth proportional to 11,871.36, 16,382.35 and 6,493.67 is: 8,961.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,871.36 : 16,382.35 = 6,493.67 : x
  2. Step 2: Convert to fraction form
    11,871.36/16,382.35 = 6,493.67/x
  3. Step 3: Cross multiply
    11,871.36x = 16,382.35 × 6,493.67
  4. Step 4: Simplify right side
    11,871.36x = 106,381,562.36
  5. Step 5: Solve for x
    x = 106,381,562.36/11,871.36
  6. Step 6: Final answer
    x = 8,961.19

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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.