Home / 13,932.12-20,897.64-5,163.12

Finding the Fourth Proportional to 13,932.12, 20,897.64 and 5,163.12

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Solution

The fourth proportional to 13,932.12, 20,897.64 and 5,163.12 is: 7,744.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,932.12 : 20,897.64 = 5,163.12 : x
  2. Step 2: Convert to fraction form
    13,932.12/20,897.64 = 5,163.12/x
  3. Step 3: Cross multiply
    13,932.12x = 20,897.64 × 5,163.12
  4. Step 4: Simplify right side
    13,932.12x = 107,897,023.04
  5. Step 5: Solve for x
    x = 107,897,023.04/13,932.12
  6. Step 6: Final answer
    x = 7,744.48

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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.