Home / 13,163.40-19,745.10-10,398.60

Finding the Fourth Proportional to 13,163.40, 19,745.10 and 10,398.60

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Solution

The fourth proportional to 13,163.40, 19,745.10 and 10,398.60 is: 15,597.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,163.40 : 19,745.10 = 10,398.60 : x
  2. Step 2: Convert to fraction form
    13,163.40/19,745.10 = 10,398.60/x
  3. Step 3: Cross multiply
    13,163.40x = 19,745.10 × 10,398.60
  4. Step 4: Simplify right side
    13,163.40x = 205,321,396.86
  5. Step 5: Solve for x
    x = 205,321,396.86/13,163.40
  6. Step 6: Final answer
    x = 15,597.90

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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.