Home / 14,147.92-21,222.08-3,759.60

Finding the Fourth Proportional to 14,147.92, 21,222.08 and 3,759.60

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Solution

The fourth proportional to 14,147.92, 21,222.08 and 3,759.60 is: 5,639.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,147.92 : 21,222.08 = 3,759.60 : x
  2. Step 2: Convert to fraction form
    14,147.92/21,222.08 = 3,759.60/x
  3. Step 3: Cross multiply
    14,147.92x = 21,222.08 × 3,759.60
  4. Step 4: Simplify right side
    14,147.92x = 79,786,531.97
  5. Step 5: Solve for x
    x = 79,786,531.97/14,147.92
  6. Step 6: Final answer
    x = 5,639.45

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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.