Home / 11,811.31-16,299.28-6,506.03

Finding the Fourth Proportional to 11,811.31, 16,299.28 and 6,506.03

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Solution

The fourth proportional to 11,811.31, 16,299.28 and 6,506.03 is: 8,978.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,811.31 : 16,299.28 = 6,506.03 : x
  2. Step 2: Convert to fraction form
    11,811.31/16,299.28 = 6,506.03/x
  3. Step 3: Cross multiply
    11,811.31x = 16,299.28 × 6,506.03
  4. Step 4: Simplify right side
    11,811.31x = 106,043,604.66
  5. Step 5: Solve for x
    x = 106,043,604.66/11,811.31
  6. Step 6: Final answer
    x = 8,978.14

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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.