Home / 13,936.34-19,231.47-7,968.66

Finding the Fourth Proportional to 13,936.34, 19,231.47 and 7,968.66

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Solution

The fourth proportional to 13,936.34, 19,231.47 and 7,968.66 is: 10,996.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,936.34 : 19,231.47 = 7,968.66 : x
  2. Step 2: Convert to fraction form
    13,936.34/19,231.47 = 7,968.66/x
  3. Step 3: Cross multiply
    13,936.34x = 19,231.47 × 7,968.66
  4. Step 4: Simplify right side
    13,936.34x = 153,249,045.73
  5. Step 5: Solve for x
    x = 153,249,045.73/13,936.34
  6. Step 6: Final answer
    x = 10,996.37

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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.