Home / 9,171.85-13,757.78-4,790.65

Finding the Fourth Proportional to 9,171.85, 13,757.78 and 4,790.65

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Solution

The fourth proportional to 9,171.85, 13,757.78 and 4,790.65 is: 7,185.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,171.85 : 13,757.78 = 4,790.65 : x
  2. Step 2: Convert to fraction form
    9,171.85/13,757.78 = 4,790.65/x
  3. Step 3: Cross multiply
    9,171.85x = 13,757.78 × 4,790.65
  4. Step 4: Simplify right side
    9,171.85x = 65,908,684.80
  5. Step 5: Solve for x
    x = 65,908,684.80/9,171.85
  6. Step 6: Final answer
    x = 7,185.98

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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.