Home / 11,371.88-15,697.46-8,411.56

Finding the Fourth Proportional to 11,371.88, 15,697.46 and 8,411.56

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Solution

The fourth proportional to 11,371.88, 15,697.46 and 8,411.56 is: 11,611.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,371.88 : 15,697.46 = 8,411.56 : x
  2. Step 2: Convert to fraction form
    11,371.88/15,697.46 = 8,411.56/x
  3. Step 3: Cross multiply
    11,371.88x = 15,697.46 × 8,411.56
  4. Step 4: Simplify right side
    11,371.88x = 132,040,126.64
  5. Step 5: Solve for x
    x = 132,040,126.64/11,371.88
  6. Step 6: Final answer
    x = 11,611.11

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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.