Home / 13,912.75-20,870.42-4,552.82

Finding the Fourth Proportional to 13,912.75, 20,870.42 and 4,552.82

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Solution

The fourth proportional to 13,912.75, 20,870.42 and 4,552.82 is: 6,829.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,912.75 : 20,870.42 = 4,552.82 : x
  2. Step 2: Convert to fraction form
    13,912.75/20,870.42 = 4,552.82/x
  3. Step 3: Cross multiply
    13,912.75x = 20,870.42 × 4,552.82
  4. Step 4: Simplify right side
    13,912.75x = 95,019,265.58
  5. Step 5: Solve for x
    x = 95,019,265.58/13,912.75
  6. Step 6: Final answer
    x = 6,829.65

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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.