Home / 13,031.56-17,979.36-7,993.36

Finding the Fourth Proportional to 13,031.56, 17,979.36 and 7,993.36

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Solution

The fourth proportional to 13,031.56, 17,979.36 and 7,993.36 is: 11,028.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,031.56 : 17,979.36 = 7,993.36 : x
  2. Step 2: Convert to fraction form
    13,031.56/17,979.36 = 7,993.36/x
  3. Step 3: Cross multiply
    13,031.56x = 17,979.36 × 7,993.36
  4. Step 4: Simplify right side
    13,031.56x = 143,715,497.05
  5. Step 5: Solve for x
    x = 143,715,497.05/13,031.56
  6. Step 6: Final answer
    x = 11,028.27

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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.