Home / 7,612.97-11,417.72-3,450.20

Finding the Fourth Proportional to 7,612.97, 11,417.72 and 3,450.20

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Solution

The fourth proportional to 7,612.97, 11,417.72 and 3,450.20 is: 5,174.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,612.97 : 11,417.72 = 3,450.20 : x
  2. Step 2: Convert to fraction form
    7,612.97/11,417.72 = 3,450.20/x
  3. Step 3: Cross multiply
    7,612.97x = 11,417.72 × 3,450.20
  4. Step 4: Simplify right side
    7,612.97x = 39,393,343.20
  5. Step 5: Solve for x
    x = 39,393,343.20/7,612.97
  6. Step 6: Final answer
    x = 5,174.51

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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.