Home / 13,173.75-18,179.73-7,508.25

Finding the Fourth Proportional to 13,173.75, 18,179.73 and 7,508.25

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Solution

The fourth proportional to 13,173.75, 18,179.73 and 7,508.25 is: 10,361.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,173.75 : 18,179.73 = 7,508.25 : x
  2. Step 2: Convert to fraction form
    13,173.75/18,179.73 = 7,508.25/x
  3. Step 3: Cross multiply
    13,173.75x = 18,179.73 × 7,508.25
  4. Step 4: Simplify right side
    13,173.75x = 136,497,957.77
  5. Step 5: Solve for x
    x = 136,497,957.77/13,173.75
  6. Step 6: Final answer
    x = 10,361.36

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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.