Home / 7,555.63-11,321.91-3,170.70

Finding the Fourth Proportional to 7,555.63, 11,321.91 and 3,170.70

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Solution

The fourth proportional to 7,555.63, 11,321.91 and 3,170.70 is: 4,751.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,555.63 : 11,321.91 = 3,170.70 : x
  2. Step 2: Convert to fraction form
    7,555.63/11,321.91 = 3,170.70/x
  3. Step 3: Cross multiply
    7,555.63x = 11,321.91 × 3,170.70
  4. Step 4: Simplify right side
    7,555.63x = 35,898,380.04
  5. Step 5: Solve for x
    x = 35,898,380.04/7,555.63
  6. Step 6: Final answer
    x = 4,751.21

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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.