Home / 13,171.24-18,176.60-7,202.90

Finding the Fourth Proportional to 13,171.24, 18,176.60 and 7,202.90

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Solution

The fourth proportional to 13,171.24, 18,176.60 and 7,202.90 is: 9,940.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,171.24 : 18,176.60 = 7,202.90 : x
  2. Step 2: Convert to fraction form
    13,171.24/18,176.60 = 7,202.90/x
  3. Step 3: Cross multiply
    13,171.24x = 18,176.60 × 7,202.90
  4. Step 4: Simplify right side
    13,171.24x = 130,924,241.57
  5. Step 5: Solve for x
    x = 130,924,241.57/13,171.24
  6. Step 6: Final answer
    x = 9,940.16

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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.