Home / 13,610.32-20,419.57-4,251.32

Finding the Fourth Proportional to 13,610.32, 20,419.57 and 4,251.32

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Solution

The fourth proportional to 13,610.32, 20,419.57 and 4,251.32 is: 6,378.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,610.32 : 20,419.57 = 4,251.32 : x
  2. Step 2: Convert to fraction form
    13,610.32/20,419.57 = 4,251.32/x
  3. Step 3: Cross multiply
    13,610.32x = 20,419.57 × 4,251.32
  4. Step 4: Simplify right side
    13,610.32x = 86,810,207.21
  5. Step 5: Solve for x
    x = 86,810,207.21/13,610.32
  6. Step 6: Final answer
    x = 6,378.27

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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.