Home / 13,162.75-19,747.55-3,928.75

Finding the Fourth Proportional to 13,162.75, 19,747.55 and 3,928.75

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Solution

The fourth proportional to 13,162.75, 19,747.55 and 3,928.75 is: 5,894.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,162.75 : 19,747.55 = 3,928.75 : x
  2. Step 2: Convert to fraction form
    13,162.75/19,747.55 = 3,928.75/x
  3. Step 3: Cross multiply
    13,162.75x = 19,747.55 × 3,928.75
  4. Step 4: Simplify right side
    13,162.75x = 77,583,167.42
  5. Step 5: Solve for x
    x = 77,583,167.42/13,162.75
  6. Step 6: Final answer
    x = 5,894.15

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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.