Home / 13,040.43-17,995.70-7,072.09

Finding the Fourth Proportional to 13,040.43, 17,995.70 and 7,072.09

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Solution

The fourth proportional to 13,040.43, 17,995.70 and 7,072.09 is: 9,759.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,040.43 : 17,995.70 = 7,072.09 : x
  2. Step 2: Convert to fraction form
    13,040.43/17,995.70 = 7,072.09/x
  3. Step 3: Cross multiply
    13,040.43x = 17,995.70 × 7,072.09
  4. Step 4: Simplify right side
    13,040.43x = 127,267,182.70
  5. Step 5: Solve for x
    x = 127,267,182.70/13,040.43
  6. Step 6: Final answer
    x = 9,759.43

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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.