Home / 13,610.25-20,415.39-5,402.25

Finding the Fourth Proportional to 13,610.25, 20,415.39 and 5,402.25

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Solution

The fourth proportional to 13,610.25, 20,415.39 and 5,402.25 is: 8,103.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,610.25 : 20,415.39 = 5,402.25 : x
  2. Step 2: Convert to fraction form
    13,610.25/20,415.39 = 5,402.25/x
  3. Step 3: Cross multiply
    13,610.25x = 20,415.39 × 5,402.25
  4. Step 4: Simplify right side
    13,610.25x = 110,289,040.63
  5. Step 5: Solve for x
    x = 110,289,040.63/13,610.25
  6. Step 6: Final answer
    x = 8,103.38

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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.