Home / 11,147.42-15,380.38-6,896.44

Finding the Fourth Proportional to 11,147.42, 15,380.38 and 6,896.44

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Solution

The fourth proportional to 11,147.42, 15,380.38 and 6,896.44 is: 9,515.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,147.42 : 15,380.38 = 6,896.44 : x
  2. Step 2: Convert to fraction form
    11,147.42/15,380.38 = 6,896.44/x
  3. Step 3: Cross multiply
    11,147.42x = 15,380.38 × 6,896.44
  4. Step 4: Simplify right side
    11,147.42x = 106,069,895.69
  5. Step 5: Solve for x
    x = 106,069,895.69/11,147.42
  6. Step 6: Final answer
    x = 9,515.19

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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.