Home / 13,126.11-18,105.62-8,019.26

Finding the Fourth Proportional to 13,126.11, 18,105.62 and 8,019.26

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Solution

The fourth proportional to 13,126.11, 18,105.62 and 8,019.26 is: 11,061.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,126.11 : 18,105.62 = 8,019.26 : x
  2. Step 2: Convert to fraction form
    13,126.11/18,105.62 = 8,019.26/x
  3. Step 3: Cross multiply
    13,126.11x = 18,105.62 × 8,019.26
  4. Step 4: Simplify right side
    13,126.11x = 145,193,674.24
  5. Step 5: Solve for x
    x = 145,193,674.24/13,126.11
  6. Step 6: Final answer
    x = 11,061.44

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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.