Home / 7,127.96-10,692.66-1,863.78

Finding the Fourth Proportional to 7,127.96, 10,692.66 and 1,863.78

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Solution

The fourth proportional to 7,127.96, 10,692.66 and 1,863.78 is: 2,795.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127.96 : 10,692.66 = 1,863.78 : x
  2. Step 2: Convert to fraction form
    7,127.96/10,692.66 = 1,863.78/x
  3. Step 3: Cross multiply
    7,127.96x = 10,692.66 × 1,863.78
  4. Step 4: Simplify right side
    7,127.96x = 19,928,765.85
  5. Step 5: Solve for x
    x = 19,928,765.85/7,127.96
  6. Step 6: Final answer
    x = 2,795.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.