Home / 13,619.92-20,425.54-4,383.76

Finding the Fourth Proportional to 13,619.92, 20,425.54 and 4,383.76

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Solution

The fourth proportional to 13,619.92, 20,425.54 and 4,383.76 is: 6,574.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,619.92 : 20,425.54 = 4,383.76 : x
  2. Step 2: Convert to fraction form
    13,619.92/20,425.54 = 4,383.76/x
  3. Step 3: Cross multiply
    13,619.92x = 20,425.54 × 4,383.76
  4. Step 4: Simplify right side
    13,619.92x = 89,540,665.23
  5. Step 5: Solve for x
    x = 89,540,665.23/13,619.92
  6. Step 6: Final answer
    x = 6,574.24

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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.