Home / 11,393.05-15,723.49-6,915.77

Finding the Fourth Proportional to 11,393.05, 15,723.49 and 6,915.77

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Solution

The fourth proportional to 11,393.05, 15,723.49 and 6,915.77 is: 9,544.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,393.05 : 15,723.49 = 6,915.77 : x
  2. Step 2: Convert to fraction form
    11,393.05/15,723.49 = 6,915.77/x
  3. Step 3: Cross multiply
    11,393.05x = 15,723.49 × 6,915.77
  4. Step 4: Simplify right side
    11,393.05x = 108,740,040.44
  5. Step 5: Solve for x
    x = 108,740,040.44/11,393.05
  6. Step 6: Final answer
    x = 9,544.42

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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.