Home / 13,040.74-17,996.12-7,072.42

Finding the Fourth Proportional to 13,040.74, 17,996.12 and 7,072.42

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Solution

The fourth proportional to 13,040.74, 17,996.12 and 7,072.42 is: 9,759.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,040.74 : 17,996.12 = 7,072.42 : x
  2. Step 2: Convert to fraction form
    13,040.74/17,996.12 = 7,072.42/x
  3. Step 3: Cross multiply
    13,040.74x = 17,996.12 × 7,072.42
  4. Step 4: Simplify right side
    13,040.74x = 127,276,119.01
  5. Step 5: Solve for x
    x = 127,276,119.01/13,040.74
  6. Step 6: Final answer
    x = 9,759.88

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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.