Home / 18,735.75-25,855.44-10,778.46

Finding the Fourth Proportional to 18,735.75, 25,855.44 and 10,778.46

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Solution

The fourth proportional to 18,735.75, 25,855.44 and 10,778.46 is: 14,874.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,735.75 : 25,855.44 = 10,778.46 : x
  2. Step 2: Convert to fraction form
    18,735.75/25,855.44 = 10,778.46/x
  3. Step 3: Cross multiply
    18,735.75x = 25,855.44 × 10,778.46
  4. Step 4: Simplify right side
    18,735.75x = 278,681,825.82
  5. Step 5: Solve for x
    x = 278,681,825.82/18,735.75
  6. Step 6: Final answer
    x = 14,874.34

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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.