Home / 15,056.75-20,778.36-8,342.33

Finding the Fourth Proportional to 15,056.75, 20,778.36 and 8,342.33

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Solution

The fourth proportional to 15,056.75, 20,778.36 and 8,342.33 is: 11,512.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,056.75 : 20,778.36 = 8,342.33 : x
  2. Step 2: Convert to fraction form
    15,056.75/20,778.36 = 8,342.33/x
  3. Step 3: Cross multiply
    15,056.75x = 20,778.36 × 8,342.33
  4. Step 4: Simplify right side
    15,056.75x = 173,339,800.80
  5. Step 5: Solve for x
    x = 173,339,800.80/15,056.75
  6. Step 6: Final answer
    x = 11,512.43

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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.