Home / 7,991.91-11,028.21-4,635.18

Finding the Fourth Proportional to 7,991.91, 11,028.21 and 4,635.18

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Solution

The fourth proportional to 7,991.91, 11,028.21 and 4,635.18 is: 6,396.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,991.91 : 11,028.21 = 4,635.18 : x
  2. Step 2: Convert to fraction form
    7,991.91/11,028.21 = 4,635.18/x
  3. Step 3: Cross multiply
    7,991.91x = 11,028.21 × 4,635.18
  4. Step 4: Simplify right side
    7,991.91x = 51,117,738.43
  5. Step 5: Solve for x
    x = 51,117,738.43/7,991.91
  6. Step 6: Final answer
    x = 6,396.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.