Home / 13,175.55-18,173.91-9,195.21

Finding the Fourth Proportional to 13,175.55, 18,173.91 and 9,195.21

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Solution

The fourth proportional to 13,175.55, 18,173.91 and 9,195.21 is: 12,683.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,175.55 : 18,173.91 = 9,195.21 : x
  2. Step 2: Convert to fraction form
    13,175.55/18,173.91 = 9,195.21/x
  3. Step 3: Cross multiply
    13,175.55x = 18,173.91 × 9,195.21
  4. Step 4: Simplify right side
    13,175.55x = 167,112,918.97
  5. Step 5: Solve for x
    x = 167,112,918.97/13,175.55
  6. Step 6: Final answer
    x = 12,683.56

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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.