Home / 17,130.20-25,679.10-10,115.60

Finding the Fourth Proportional to 17,130.20, 25,679.10 and 10,115.60

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Solution

The fourth proportional to 17,130.20, 25,679.10 and 10,115.60 is: 15,163.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,130.20 : 25,679.10 = 10,115.60 : x
  2. Step 2: Convert to fraction form
    17,130.20/25,679.10 = 10,115.60/x
  3. Step 3: Cross multiply
    17,130.20x = 25,679.10 × 10,115.60
  4. Step 4: Simplify right side
    17,130.20x = 259,759,503.96
  5. Step 5: Solve for x
    x = 259,759,503.96/17,130.20
  6. Step 6: Final answer
    x = 15,163.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.