Home / 11,715.06-16,166.82-6,409.56

Finding the Fourth Proportional to 11,715.06, 16,166.82 and 6,409.56

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Solution

The fourth proportional to 11,715.06, 16,166.82 and 6,409.56 is: 8,845.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,715.06 : 16,166.82 = 6,409.56 : x
  2. Step 2: Convert to fraction form
    11,715.06/16,166.82 = 6,409.56/x
  3. Step 3: Cross multiply
    11,715.06x = 16,166.82 × 6,409.56
  4. Step 4: Simplify right side
    11,715.06x = 103,622,202.80
  5. Step 5: Solve for x
    x = 103,622,202.80/11,715.06
  6. Step 6: Final answer
    x = 8,845.21

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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.