Home / 13,168.97-18,173.05-7,200.57

Finding the Fourth Proportional to 13,168.97, 18,173.05 and 7,200.57

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Solution

The fourth proportional to 13,168.97, 18,173.05 and 7,200.57 is: 9,936.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,168.97 : 18,173.05 = 7,200.57 : x
  2. Step 2: Convert to fraction form
    13,168.97/18,173.05 = 7,200.57/x
  3. Step 3: Cross multiply
    13,168.97x = 18,173.05 × 7,200.57
  4. Step 4: Simplify right side
    13,168.97x = 130,856,300.64
  5. Step 5: Solve for x
    x = 130,856,300.64/13,168.97
  6. Step 6: Final answer
    x = 9,936.72

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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.