Home / 12,546.29-17,313.21-7,240.79

Finding the Fourth Proportional to 12,546.29, 17,313.21 and 7,240.79

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Solution

The fourth proportional to 12,546.29, 17,313.21 and 7,240.79 is: 9,991.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,546.29 : 17,313.21 = 7,240.79 : x
  2. Step 2: Convert to fraction form
    12,546.29/17,313.21 = 7,240.79/x
  3. Step 3: Cross multiply
    12,546.29x = 17,313.21 × 7,240.79
  4. Step 4: Simplify right side
    12,546.29x = 125,361,361.12
  5. Step 5: Solve for x
    x = 125,361,361.12/12,546.29
  6. Step 6: Final answer
    x = 9,991.90

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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.