Home / 13,372.29-18,455.04-8,067.06

Finding the Fourth Proportional to 13,372.29, 18,455.04 and 8,067.06

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Solution

The fourth proportional to 13,372.29, 18,455.04 and 8,067.06 is: 11,133.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,372.29 : 18,455.04 = 8,067.06 : x
  2. Step 2: Convert to fraction form
    13,372.29/18,455.04 = 8,067.06/x
  3. Step 3: Cross multiply
    13,372.29x = 18,455.04 × 8,067.06
  4. Step 4: Simplify right side
    13,372.29x = 148,877,914.98
  5. Step 5: Solve for x
    x = 148,877,914.98/13,372.29
  6. Step 6: Final answer
    x = 11,133.31

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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.