Home / 13,383.88-20,079.01-4,618.87

Finding the Fourth Proportional to 13,383.88, 20,079.01 and 4,618.87

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Solution

The fourth proportional to 13,383.88, 20,079.01 and 4,618.87 is: 6,929.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,383.88 : 20,079.01 = 4,618.87 : x
  2. Step 2: Convert to fraction form
    13,383.88/20,079.01 = 4,618.87/x
  3. Step 3: Cross multiply
    13,383.88x = 20,079.01 × 4,618.87
  4. Step 4: Simplify right side
    13,383.88x = 92,742,336.92
  5. Step 5: Solve for x
    x = 92,742,336.92/13,383.88
  6. Step 6: Final answer
    x = 6,929.41

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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.