Home / 13,192.43-18,205.35-7,224.09

Finding the Fourth Proportional to 13,192.43, 18,205.35 and 7,224.09

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Solution

The fourth proportional to 13,192.43, 18,205.35 and 7,224.09 is: 9,969.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,192.43 : 18,205.35 = 7,224.09 : x
  2. Step 2: Convert to fraction form
    13,192.43/18,205.35 = 7,224.09/x
  3. Step 3: Cross multiply
    13,192.43x = 18,205.35 × 7,224.09
  4. Step 4: Simplify right side
    13,192.43x = 131,517,086.88
  5. Step 5: Solve for x
    x = 131,517,086.88/13,192.43
  6. Step 6: Final answer
    x = 9,969.14

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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.