Home / 13,936.50-19,230.21-7,968.42

Finding the Fourth Proportional to 13,936.50, 19,230.21 and 7,968.42

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Solution

The fourth proportional to 13,936.50, 19,230.21 and 7,968.42 is: 10,995.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,936.50 : 19,230.21 = 7,968.42 : x
  2. Step 2: Convert to fraction form
    13,936.50/19,230.21 = 7,968.42/x
  3. Step 3: Cross multiply
    13,936.50x = 19,230.21 × 7,968.42
  4. Step 4: Simplify right side
    13,936.50x = 153,234,389.97
  5. Step 5: Solve for x
    x = 153,234,389.97/13,936.50
  6. Step 6: Final answer
    x = 10,995.18

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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.