Home / 7,446.80-11,170.20-5,108.60

Finding the Fourth Proportional to 7,446.80, 11,170.20 and 5,108.60

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Solution

The fourth proportional to 7,446.80, 11,170.20 and 5,108.60 is: 7,662.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,446.80 : 11,170.20 = 5,108.60 : x
  2. Step 2: Convert to fraction form
    7,446.80/11,170.20 = 5,108.60/x
  3. Step 3: Cross multiply
    7,446.80x = 11,170.20 × 5,108.60
  4. Step 4: Simplify right side
    7,446.80x = 57,064,083.72
  5. Step 5: Solve for x
    x = 57,064,083.72/7,446.80
  6. Step 6: Final answer
    x = 7,662.90

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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.