Home / 11,915.96-16,436.67-7,665.44

Finding the Fourth Proportional to 11,915.96, 16,436.67 and 7,665.44

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Solution

The fourth proportional to 11,915.96, 16,436.67 and 7,665.44 is: 10,573.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,915.96 : 16,436.67 = 7,665.44 : x
  2. Step 2: Convert to fraction form
    11,915.96/16,436.67 = 7,665.44/x
  3. Step 3: Cross multiply
    11,915.96x = 16,436.67 × 7,665.44
  4. Step 4: Simplify right side
    11,915.96x = 125,994,239.87
  5. Step 5: Solve for x
    x = 125,994,239.87/11,915.96
  6. Step 6: Final answer
    x = 10,573.57

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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.