Home / 13,175.93-18,192.29-8,147.04

Finding the Fourth Proportional to 13,175.93, 18,192.29 and 8,147.04

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Solution

The fourth proportional to 13,175.93, 18,192.29 and 8,147.04 is: 11,248.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,175.93 : 18,192.29 = 8,147.04 : x
  2. Step 2: Convert to fraction form
    13,175.93/18,192.29 = 8,147.04/x
  3. Step 3: Cross multiply
    13,175.93x = 18,192.29 × 8,147.04
  4. Step 4: Simplify right side
    13,175.93x = 148,213,273.59
  5. Step 5: Solve for x
    x = 148,213,273.59/13,175.93
  6. Step 6: Final answer
    x = 11,248.79

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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.