Home / 11,722.24-16,172.17-7,238.28

Finding the Fourth Proportional to 11,722.24, 16,172.17 and 7,238.28

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Solution

The fourth proportional to 11,722.24, 16,172.17 and 7,238.28 is: 9,986.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,722.24 : 16,172.17 = 7,238.28 : x
  2. Step 2: Convert to fraction form
    11,722.24/16,172.17 = 7,238.28/x
  3. Step 3: Cross multiply
    11,722.24x = 16,172.17 × 7,238.28
  4. Step 4: Simplify right side
    11,722.24x = 117,058,694.67
  5. Step 5: Solve for x
    x = 117,058,694.67/11,722.24
  6. Step 6: Final answer
    x = 9,986.03

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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.