Home / 13,013.28-17,958.20-7,044.80

Finding the Fourth Proportional to 13,013.28, 17,958.20 and 7,044.80

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Solution

The fourth proportional to 13,013.28, 17,958.20 and 7,044.80 is: 9,721.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,013.28 : 17,958.20 = 7,044.80 : x
  2. Step 2: Convert to fraction form
    13,013.28/17,958.20 = 7,044.80/x
  3. Step 3: Cross multiply
    13,013.28x = 17,958.20 × 7,044.80
  4. Step 4: Simplify right side
    13,013.28x = 126,511,837.57
  5. Step 5: Solve for x
    x = 126,511,837.57/13,013.28
  6. Step 6: Final answer
    x = 9,721.75

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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.