Home / 13,622.26-18,786.24-8,837.20

Finding the Fourth Proportional to 13,622.26, 18,786.24 and 8,837.20

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Solution

The fourth proportional to 13,622.26, 18,786.24 and 8,837.20 is: 12,187.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,622.26 : 18,786.24 = 8,837.20 : x
  2. Step 2: Convert to fraction form
    13,622.26/18,786.24 = 8,837.20/x
  3. Step 3: Cross multiply
    13,622.26x = 18,786.24 × 8,837.20
  4. Step 4: Simplify right side
    13,622.26x = 166,017,760.13
  5. Step 5: Solve for x
    x = 166,017,760.13/13,622.26
  6. Step 6: Final answer
    x = 12,187.24

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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.