Home / 13,018.37-17,974.26-8,309.03

Finding the Fourth Proportional to 13,018.37, 17,974.26 and 8,309.03

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Solution

The fourth proportional to 13,018.37, 17,974.26 and 8,309.03 is: 11,472.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,018.37 : 17,974.26 = 8,309.03 : x
  2. Step 2: Convert to fraction form
    13,018.37/17,974.26 = 8,309.03/x
  3. Step 3: Cross multiply
    13,018.37x = 17,974.26 × 8,309.03
  4. Step 4: Simplify right side
    13,018.37x = 149,348,575.70
  5. Step 5: Solve for x
    x = 149,348,575.70/13,018.37
  6. Step 6: Final answer
    x = 11,472.15

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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.