Home / 13,168.62-18,171.96-7,199.10

Finding the Fourth Proportional to 13,168.62, 18,171.96 and 7,199.10

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Solution

The fourth proportional to 13,168.62, 18,171.96 and 7,199.10 is: 9,934.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,168.62 : 18,171.96 = 7,199.10 : x
  2. Step 2: Convert to fraction form
    13,168.62/18,171.96 = 7,199.10/x
  3. Step 3: Cross multiply
    13,168.62x = 18,171.96 × 7,199.10
  4. Step 4: Simplify right side
    13,168.62x = 130,821,757.24
  5. Step 5: Solve for x
    x = 130,821,757.24/13,168.62
  6. Step 6: Final answer
    x = 9,934.36

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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.