Home / 11,551.44-15,940.96-6,515.64

Finding the Fourth Proportional to 11,551.44, 15,940.96 and 6,515.64

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Solution

The fourth proportional to 11,551.44, 15,940.96 and 6,515.64 is: 8,991.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,551.44 : 15,940.96 = 6,515.64 : x
  2. Step 2: Convert to fraction form
    11,551.44/15,940.96 = 6,515.64/x
  3. Step 3: Cross multiply
    11,551.44x = 15,940.96 × 6,515.64
  4. Step 4: Simplify right side
    11,551.44x = 103,865,591.92
  5. Step 5: Solve for x
    x = 103,865,591.92/11,551.44
  6. Step 6: Final answer
    x = 8,991.57

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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.