Home / 13,175.88-18,180.73-7,511.13

Finding the Fourth Proportional to 13,175.88, 18,180.73 and 7,511.13

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Solution

The fourth proportional to 13,175.88, 18,180.73 and 7,511.13 is: 10,364.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,175.88 : 18,180.73 = 7,511.13 : x
  2. Step 2: Convert to fraction form
    13,175.88/18,180.73 = 7,511.13/x
  3. Step 3: Cross multiply
    13,175.88x = 18,180.73 × 7,511.13
  4. Step 4: Simplify right side
    13,175.88x = 136,557,735.62
  5. Step 5: Solve for x
    x = 136,557,735.62/13,175.88
  6. Step 6: Final answer
    x = 10,364.22

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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.