Home / 13,170.03-18,173.97-7,200.54

Finding the Fourth Proportional to 13,170.03, 18,173.97 and 7,200.54

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Solution

The fourth proportional to 13,170.03, 18,173.97 and 7,200.54 is: 9,936.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,170.03 : 18,173.97 = 7,200.54 : x
  2. Step 2: Convert to fraction form
    13,170.03/18,173.97 = 7,200.54/x
  3. Step 3: Cross multiply
    13,170.03x = 18,173.97 × 7,200.54
  4. Step 4: Simplify right side
    13,170.03x = 130,862,397.94
  5. Step 5: Solve for x
    x = 130,862,397.94/13,170.03
  6. Step 6: Final answer
    x = 9,936.38

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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.